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Hike & Backpack

Packs, footwear, navigation, and layers for the trail.

Browse Hike & Backpack by category

Hiker on a rocky ridgeline trail at sunrise, wearing mid-cut hiking boots with a light daypack, mountain peaks in the background

Four hiking boot picks for day hikes and light backpacking: a Gore-Tex workhorse, a reliable value mid, a roomy-toe-box option, and a budget boot.

Oct 5, 20264 picks
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Buying guides

A hiker using trekking poles on a rocky alpine trail

Four trekking-pole systems compared with current weights, dimensions, live prices, and exact use cases. Aluminum, budget carbon, and folding picks.

Sep 19, 20264 picks
A hiker on a rocky alpine ridge checks a small satellite messenger clipped to a shoulder strap, peaks and open sky behind them

The best satellite messengers for 2026: Garmin inReach Mini 3 Plus, Mini 3, and Messenger, ZOLEO, and the ACR ResQLink View PLB compared on weight, battery, SOS, and plan costs.

Oct 10, 20265 picks
A hiker on an exposed ridge wearing a teal neck gaiter pulled up over the nose, trekking poles in hand, bright midday sun and open rocky terrain in the background

The four best neck gaiters for hiking, ranked on UPF rating, breathability, warmth, and versatility. Buff, BlackStrap, and Smartwool picks for sun, wind, and cold.

Sep 25, 20266 picks
A backpacker crossing an alpine ridge with a loaded 65L pack, mountain peaks stretching behind them under clear morning sky

The Osprey Atmos AG LT 65 is the backpacking pack to buy for most people. Eight picks from a 30.8 oz ultralight to a 65 lb-rated hauler, with weights, torso ranges, and load ratings from the makers.

Oct 3, 20268 picks
Hiker in a fitted merino base layer pausing on a rocky ridge, morning light casting long shadows across the trail ahead

Merino wool or synthetic? Lightweight or midweight? Our research-backed picks cover every hiking style and budget, from day hikes to thru-hikes.

Jul 27, 20264 picks
A filled bear canister sitting on granite next to a loaded backpack at a high-alpine campsite, pine trees and a lake visible in the background

The four best IGBC-certified bear canisters for backpacking: top picks for solo trips, budget buyers, and high-bear-country expeditions, with honest trade-offs on weight and volume.

Jun 4, 20264 picks
A hiker raising 8x42 binoculars toward a ridge-top raptor, morning light spilling across a forest valley below

The four best compact binoculars for hiking ranked on optical clarity, weight, field of view, and value. 8x42 picks for birding, wildlife, and trail scenery.

Jun 4, 20264 picks
A pair of camp shoes sitting beside a trail runner boot at the edge of a granite slab campsite, with a backcountry lake and pine forest in the background at golden hour

The best camp shoes for hikers ranked by weight, packed size, grip, and recovery benefit. Slides, clogs, and insulated mules for giving your feet a real break at camp.

Jul 17, 20263 picks
Hiker wrapping a wet cooling towel around their neck on a sun-exposed desert ridgeline, red rock canyon walls in the background

PVA or microfiber? Our research-backed picks cover the best cooling towels for hot-weather hiking, gym sessions, and outdoor work, with real numbers on cooling time, size, and packability.

Jun 5, 20263 picks
Hiker on a rocky ridge trail, wearing a teal daypack, mid-morning light casting long shadows across the stone

Our research picks for the best hiking daypacks in the 15–30 L range, ranked by fit, ventilation, organization, and value.

Jul 18, 20263 picks
A hiker in a teal down jacket on an exposed ridge at golden hour, peaks and clouds behind them

Which down jacket brands give the best value? What independent testers found, plus four hiking picks from Mountain Hardwear, Rab, Marmot, and Eddie Bauer compared on fill power, weight, and weather resistance.

Sep 26, 20264 picks
A kayaker loading a bright orange roll-top dry bag into a sea kayak cockpit on a rocky shoreline, water-worn mountains reflected in the calm inlet behind them

The four best dry bags ranked by waterproof rating, weight, durability, and value. From a $20 budget pick to a fully submersible airtight pack for electronics.

Jul 17, 20263 picks
A hiker checking a GPS watch on a rocky ridgeline above a valley of alpine lakes at golden hour

Eight GPS watches for hiking compared on battery, maps, multi-band GPS, and price, updated for the fenix 9, Apple Watch Ultra 4, and vivoactive 6. The Instinct 3 Solar leads.

Oct 3, 20268 picks
A hiker in mountain terrain holding a handheld GPS device, with a ridgeline trail visible in the background

Seven Garmin handheld GPS units and satellite messengers for 2026, including the new GPSMAP H1i Plus, eTrex Touch, and inReach Mini 3 Plus: maps, battery, SOS, and subscription costs compared.

Oct 3, 20267 picks
A hiker adjusting a headlamp on a rocky alpine trail at dusk, headlamp beam cutting through low fog

Three headlamps for hiking and camping, compared by beam, weight, battery system, weather protection, and the trips each one suits.

Sep 24, 20263 picks
A woman lacing a mid-cut waterproof hiking boot on a granite boulder above an alpine lake, a second boot and a daypack beside her

Four women's hiking boots ranked by what actually decides the purchase: last width, waterproof membrane, and how much weight the boot can carry comfortably.

Aug 6, 20263 picks
A lightweight first aid kit open on a granite slab above treeline, trail and ridgeline visible in the background

The best hiking first aid kits sized by trip length, weight, and group size. Four researched picks from solo day hikes to multi-day backpacking, with a comparison table and buying guide.

Jun 4, 20264 picks
Hiker crossing a muddy alpine trail in full-height gaiters, autumn larch forest and snow patches in the background

Low, mid, or full-height? Waterproof or breathable? Our research-backed picks cover every hiking style, from trail running to winter mountaineering.

Sep 25, 20264 picks
Hiker adjusting trekking pole straps on a snow-dusted ridge, wearing dark softshell gloves, grey sky and exposed granite in the background

Liner, softshell, or waterproof insulated? Our research-backed picks cover every cold-weather hiking scenario, from shoulder-season mornings to icy winter trails.

Jun 4, 20264 picks
A hiker stepping through a shallow creek crossing on a rocky trail, wearing closed-toe sandals, sunlit canyon walls in the background

The best hiking sandals for summer trails, river crossings, and travel, ranked by support, grip, and durability. Four research-backed picks for every budget.

Aug 6, 20267 picks
A hiker on a sun-lit mountain ridge pausing to drink from a hydration hose, a teal reservoir visible through the mesh pocket of a pack

The four best hydration bladders for hiking, ranked by capacity, leak-proof design, ease of cleaning, bite-valve flow, and trail durability. Picks for every budget.

Sep 19, 20264 picks
A trail runner descending a rocky ridgeline at golden hour, wearing a fitted hydration vest with soft flasks visible in the chest pockets

Four hydration vests compared across capacity, bounce control, fit, and ventilation, so you can pick the right pack for your distance.

Sep 18, 20264 picks
A stainless steel insulated water bottle resting against a granite boulder on a sun-drenched alpine trail, condensation visible on the exterior, pine forest blurred in the background

The Hydro Flask 32 oz Wide Mouth is the best insulated water bottle for most people. Four sourced picks compared on cold and hot ratings, lids, dishwasher care, and value.

Oct 10, 20264 picks
A hiker in a bright teal rain jacket cresting a fog-wrapped ridge in the Pacific Northwest, rain sheeting off the shell

The best hiking rain jackets in 2026, from the $130 PreCip Eco to the $500 Arc'teryx Beta SL. Real specs, verified reviews, and a clear pick for every hiker.

Jul 27, 20263 picks
A hiker in a wide-brim sun hat crossing a sun-bleached desert canyon trail, red rock walls rising on either side under a cloudless midday sky

The four best sun hats for hiking, ranked on UPF rating, coverage, breathability, and packability. Wide-brim, bucket, and cap-with-cape picks for desert and alpine sun.

Sep 26, 20264 picks
A hiker in a light-colored UPF hooded shirt descending a sun-exposed sandstone ridge in the American Southwest, midday glare casting sharp shadows across canyon walls

UPF 50+ hiking shirts and sun hoodies ranked by breathability, coverage, and value. Four picks for desert trails and high-altitude sun exposure.

Jun 5, 20263 picks
A woman running on a dirt singletrack trail through summer meadow grass at golden hour, dust lifting off her trail running shoes

Five women's trail running shoes, sorted by the thing that actually decides it: how much grip your ground demands and how much cushion your legs want.

Sep 26, 20265 picks
A trail runner mid-stride on a rocky alpine singletrack, dirt and loose stone kicking up behind the shoe's lugged outsole

Four trail running shoe picks for grip, cushion, and durability. Hoka, Saucony, Salomon, and Altra options for different terrain, pace, and budgets.

Oct 5, 20264 picks
A hiker carrying a silver reflective umbrella across a bright desert trail

Four live hiking umbrellas compared by packed length, frame, coverage, UPF rating, and current price. Picks for desert trails, travel, and budget use.

Jul 31, 20264 picks
A freestanding ultralight tent pitched at golden hour on a granite ridgeline, trekking poles leaning against the fly, mountain range receding in the background

Seven ultralight backpacking tents compared by weight, floor space, and pitch style, from the 17.8 oz Zpacks Duplex to freestanding Big Agnes and MSR tents. Top pick: Durston X-Mid 2.

Oct 3, 20267 picks
A backpacker on a granite boulder above an alpine lake checks a phone, a slim black power bank and cable resting on one knee, trekking poles and a small pack beside them

Six 10,000mAh power banks at about 6 oz or less for backpacking and trail running, compared on real watt-hours, grams per Wh, charging speed, and water rating.

Oct 3, 20266 picks
Women's waterproof mid-cut hiking boots mid-stride on a wet rocky mountain trail

Kit Scores 8.0 to 8.4. Women's-last boots for wide feet, heavy packs, all-around hiking, and a first pair under $110. Fit decides this more than brand.

Jul 27, 20263 picks
A hiker's boots and sock-covered ankles on a rocky trail, sunlight on the stones ahead

The best hiking socks ranked on cushion, fit, blister prevention, and durability, plus how to pick the right height and material for your trail.

Jun 3, 20263 picks

Reviews, comparisons & how-tos

Hiking boots vs trail runners: which should you wear?

Choose trail runners for lighter loads and maintained trails or hiking boots for heavy packs and rough terrain. Compare weight, support, and durability.

Carbon fiber and aluminum trekking pole shafts shown side by side over a mountain map

Buy carbon trekking poles for lower swing weight or aluminum for lower cost and rough terrain. Compare stiffness, failure behavior, fit, and value.

Satellite messenger vs PLB: which one should you carry?

Choose a satellite messenger for two-way communication and tracking or a PLB for subscription-free emergency signaling. Compare coverage, cost, and use.

A daypack with a hydration reservoir and drinking tube next to a steel water bottle, soft flask, and stuff sack on a rock above an alpine lake

Choose a hydration vest for running and fast hiking or a pack for more water, storage, and all-day gear. Compare capacity, access, bounce, and comfort.

Merino vs synthetic base layers: which should you choose?

Choose merino for odor control and multi-day comfort or synthetic for faster drying, durability, and lower cost. Compare warmth, care, and best uses.

Hiking gifts on a weathered trailhead bench in alpine morning light: merino socks, a small headlamp, an insulated bottle, folded trekking poles, and a fleece gaiter beside a wrapped gift box

Seven useful hiking gifts for shorter days and year-round trails: a fleece neck gaiter, merino socks, a 47-gram headlamp, trekking poles, an insulated bottle, a cooling towel, and the Osprey Talon 22 daypack.

8x42 vs 10x42 binoculars: which magnification is right for you

8x42 and 10x42 binoculars split every gear decision for hikers and birders. Here is what the numbers actually mean for field of view, image shake, low-light performance, and when to pick each.

Amazfit T-Rex 3 outdoor GPS watch shown clearly against mountain terrain

Kit Score 8.2/10. T-Rex 3 includes offline maps, dual-band GPS, and a bright 1.5-inch AMOLED near $250. Software polish is where the price shows.

Are trekking poles worth it?

Peer-reviewed data on knee load reduction, muscle damage, and energy cost. Plus when poles help, when to stow them, and the three technique rules that make them work.

Are trekking umbrellas worth it

Where a trekking umbrella earns its place, where it falls short, and how to decide if one belongs in your pack.

Folded carbon trekking poles secured to the shoulder of a trail-running pack

Kit Score 8.4/10. Distance Carbon FLZ folds to 13.4–15.7 inches and weighs 10.9–12.8 oz per pair, but sizing and price demand attention.

Black Diamond Spot 400-R Rechargeable Headlamp

Kit Score 8.5/10. 400 lumens, IP67 submersible, and PowerTap instant max. Where the rechargeable beats the battery version, and where it does not.

Black Diamond Trail Back style aluminum trekking poles planted beside a rocky mountain trail

Kit Score 8.6/10. Trail Back gives hikers a 100–140 cm range, visible FlickLock adjustment, and aluminum shafts for about $75. See the tradeoffs.

Two pairs of aluminum trekking poles with foam and cork grips compared at a trailhead

Trail Back costs less and adjusts farther; Legacy Lite adds an 80% cork grip and lifetime shaft-breakage coverage. Compare the numbers.

Carbon fiber trekking poles with cork grips laid beside a packed hiking backpack

Kit Score 7.9/10. Cascade's carbon pair is roughly 14.4 oz before tips and costs less than many aluminum poles, with clear hardware compromises.

Carbon and aluminum trekking pole pairs compared beside a rocky backpacking trail

Cascade saves roughly five ounces with carbon; Trail Back offers a wider range, aluminum shafts, and established FlickLocks. See which compromise fits.

A hiker wearing lightweight full-length convertible hiking pants

Convertible hiking pants handle changing temperatures with one garment. Regular hiking pants fit cleaner and remove a common pressure point.

Darn Tough Hiker Micro Crew Midweight with Cushion

Kit Score 8.9/10, the highest we have scored a sock. Merino midweight cushion, knit in Vermont, unconditional lifetime replacement. The price is the argument.

Daypack, hydration bladder, first aid kit, headlamp, and sun hat laid out before a day hike

A complete day-hike loadout, category by category: daypack, water, first aid, headlamp, navigation, sun protection, and layers. What goes in the pack and what stays home.

Day-hike checklist: the ten essentials and what actually fits in your pack

A practical day-hike packing list built around the ten essentials, scaled by trip length and conditions, with honest notes on what beginners overpack.

Do you need a bear canister? Regulations, sizing, and rules

Bear canisters are required in a growing list of parks and wilderness areas. Here is where the rules apply, how to size a canister for your trip length, and how to store food correctly at camp.

Do you need a satellite messenger

Yes for solo and remote backcountry trips; skip it where cell service holds. Where iPhone satellite SOS fits, and what $7.99-$49.99/month plans actually buy.

Do you need gaiters for hiking? An honest take

Gaiters earn their place in snow, scree, mud, and trail debris, and they are dead weight on dry groomed trails. Here is when to wear them and when to skip them.

Down vs synthetic insulation: which jacket wins?

Warmth-to-weight, wet performance, packability, cost and longevity compared so you can pick the right insulated jacket for your hike.

A short folded Z-pole bundle beside a long collapsed telescoping trekking pole pair

Folding poles pack nearly 10 inches shorter; telescoping poles usually adjust farther and cost less. Compare storage, deployment, fit, and repair.

Garmin Enduro 3 watch shown clearly in a long-distance hiking setting

Kit Score 9.1/10. Enduro 3 pairs full Garmin topo maps with up to 320 solar GPS hours at 63 grams. The 51mm-only case is the deciding constraint.

Garmin Fenix 8 Solar Sapphire 47mm watch displayed against a clean trail-ready background

Kit Score 9.0/10. The Fenix 8 Solar 47mm has full topo maps, sapphire protection, and up to 92 GPS hours with solar. Here is who should pay for it.

Garmin Fenix 8 Solar and Garmin Enduro 3 watches shown side by side

Fenix 8 wins on sizes, voice, and diving. Enduro 3 wins on weight and battery while keeping full topo maps. Compare the hiking differences.

Garmin inReach Mini 2 vs GPSMAP 67i: which should you carry?

The 3.5 oz inReach Mini 2 wins for hikers who navigate by phone; the 8.1 oz GPSMAP 67i adds standalone topo maps. Same SOS. Both now have newer successors.

Garmin Instinct 3 Solar 45mm watch shown against a rugged hiking backdrop

Kit Score 8.7/10. Instinct 3 Solar brings multi-band GPS, rugged construction, and up to 130 GPS hours with solar. Breadcrumb navigation is the trade.

Garmin Instinct 3 Solar and Amazfit T-Rex 3 watches displayed side by side

Garmin Instinct 3 Solar for planned routes: five buttons, 45mm case, solar battery. Amazfit T-Rex 3 for offline topo maps and a 1.5 in AMOLED for less.

A hiker with trekking poles ascending an alpine trail above treeline, granite peaks and building afternoon clouds in the distance

A packing guide for high-elevation parks like Rocky Mountain, Grand Teton, and Great Basin: UV that climbs with altitude, afternoon thunderstorm protocol, layering, hydration, and sleeping high.

Hiking sandals vs hiking shoes: which one should you wear?

Sandals win on ventilation and water crossings; shoes win on protection, support, and load. Here is how to pick the right one for your next hike.

Hoka Speedgoat 6

Kit Score 7.8/10. 40mm of stack on Vibram Megagrip at 9.8 oz. How it lands against the Peregrine 15 and the Speedcross 6 on real trail.

How much water to bring hiking

Plan your hiking water right: 500 ml per hour baseline, heat and altitude adjustments, when to filter on trail, and why electrolytes matter on longer days.

How to attach an umbrella to a backpack for hands-free hiking

Shoulder-strap clamp mounts, DIY cord-and-clip rigs, angle and stability tips, and wind management so you can hike with both hands free under a trekking umbrella.

How to break in hiking boots

Why break-in time varies by boot construction, a step-up wear schedule that works, sock and lacing tactics, blister prevention, and when a boot is simply the wrong fit.

How to choose a headlamp for hiking

Lumens, beam type, regulated output, IPX ratings, rechargeable vs AAA, weight, and red light: everything you need to pick the right headlamp for the trail.

How to choose a hiking daypack

Capacity ranges, torso fit, hipbelt placement, ventilation, and hydration: everything you need to pick the right hiking daypack for full-day trails.

A hydration pack with its reservoir, drinking tube, and a water filter laid out on a boulder beside a mountain stream

Match your hydration vest to your distance and pace. Capacity by effort, soft flasks vs bladder, fit and bounce control, sizing, and ventilation explained.

How to choose a rain jacket for hiking

Waterproof ratings, breathability numbers, 2L vs 3L construction, DWR coatings, and fit over layers: what the specs actually mean and how to match them to your hike.

How to choose a sun hat for hiking

Wide brim, bucket, or cap with cape? This guide covers UPF ratings, brim width, ventilation, chin straps, and how to match your hat to desert, forest, or alpine terrain.

How to choose binoculars: reading the numbers

Decode binocular specs: what 8x42 means, how magnification affects shake and field of view, objective size vs weight, exit pupil, prism type, and eye relief.

How to choose hiking gaiters: match height to terrain

Pick hiking gaiters by terrain first. Compare low, mid, and full heights, nylon vs Gore-Tex, closures, instep straps, and lace-hook fit.

How to choose hiking gloves

Liner, softshell, or waterproof insulated: match your hiking glove to temperature, output level, and the dexterity you actually need on trail.

How to choose hiking sandals

Go closed-toe on rocky trails and insist on a 4 mm lugged outsole for wet rock. Strap systems, sizing, arch support, and quick-dry features explained.

How to choose hiking socks

Cushion level, sock height, merino vs synthetic, fit, liner socks, and how many pairs to pack. Everything that actually prevents blisters on trail.

How to clean a hydration bladder (and keep it mold-free)

Step-by-step guide to cleaning, drying, and storing a hydration reservoir: baking soda soaks, bleach disinfection, tube brushes, and freezer storage done right.

How to layer for cold-weather hiking: the three-layer system

Learn how base, insulating, and shell layers work together for cold-weather hikes, and adjust them for effort, wind, precipitation, and stops.

How to layer gloves for cold hiking: the liner-plus-shell system

A thin merino liner paired with a waterproof shell outperforms one thick glove in almost every cold-weather hiking scenario. Here is how to use the system, manage sweat and dexterity, and know when to add insulated mitts.

How to prevent blisters while hiking

Sock choice, boot fit, lacing techniques, moisture control, taping hot spots, lubricants, and what to do once a blister forms. The complete prevention system.

How to size a backpacking pack

Measure your torso and hips, adjust the harness in the right order, and match pack volume to trip length. A plain-English fit guide for backpackers.

How to use a dry bag: the correct technique

Roll-top closure, air purging, what to pack, using one as a pack liner, double-bagging critical gear, and the real difference between splash resistance and submersion.

A hiking boot wearing stretch-on traction spikes on an icy trail, with a steel crampon and trekking pole resting on a snowy rock and a turquoise lake behind

Choose winter traction by the surface underfoot: low-profile ice cleats for pavement, chain spikes for packed trails, snowshoes for deep snow, and crampons for technical terrain.

LEKI Legacy Lite style trekking poles with cork grips resting against a trail sign

Kit Score 8.5/10. Legacy Lite combines an 80% natural-cork grip, Speed Lock Plus levers, and a lifetime shaft-breakage warranty.

Merrell Men's Moab 3 Mid Waterproof Hiking Boot

Kit Score 8/10. Comfortable from the first mile with no break-in period, and the waterproofing caveat that costs it a higher score.

A hiker wearing Moosehill HikerFlex M015 convertible pants with the legs attached

Compare Moosehill's M015 and W024 convertible hiking pants by fit, sizing, pockets, fabric, and who should buy each pair.

Nitecore NB10000 Gen4 carbon fiber power bank with its yellow lanyard charging cable

Kit Score 8.7/10. 143 g, 39Wh, two 22.5W USB-C ports, and IPX7. Who the Gen4 suits, how it compares with the Gen3, FLEXTAIL, and INIU, and what it costs you.

Osprey Atmos AG LT 65

Kit Score 8.4/10. Anti-Gravity suspended mesh, 65L, and a lifetime warranty. What the LT sheds against the standard Atmos, and who should care.

Osprey Talon 22

Kit Score 8.6/10, our top hiking daypack. 22L, an adjustable torso, and hipbelt pockets that hold a real phone. Check one thing before you size it.

A hiker carrying a silver reflective trekking umbrella across an exposed desert trail

Kit Score 8.8/10. Silver Shadow Carbon pairs a rigid carbon frame with a 37-inch UPF 50+ canopy at 6.8 oz. See where it works and fails.

A full-length silver trekking umbrella beside a compact folded hiking umbrella on a backpack

Both weigh 6.8 oz. Carbon uses a rigid 25-inch frame; Mini collapses to 10 inches and adds moving joints. Choose by storage and handling.

Two silver trekking umbrellas with carbon and fiberglass shafts compared in bright desert sun

Carbon and standard share the same 37-inch canopy and packed length. Carbon saves 2.1 oz; fiberglass saves about $10. Compare the value.

A compact folded silver hiking umbrella beside a small bikepacking bag and trail map

Kit Score 8.2/10. Silver Shadow Mini folds to 10 inches, opens to 38 inches, and weighs 6.8 oz. Compact storage comes with more moving parts.

A silver fiberglass trekking umbrella shading a backpack at an exposed trail rest stop

Kit Score 8.5/10. The standard Silver Shadow uses the same 37-inch UPF 50+ canopy as the Carbon with a heavier fiberglass frame for less money.

Trail running shoes vs hiking boots: which should you wear?

Weight, breathability, support, durability, and pack-weight thresholds explained so you can pick the right footwear for your next hike.

Two hikers in summer rain, one beneath a silver trekking umbrella and one wearing a hooded rain jacket

Umbrellas ventilate and create shade; rain jackets protect in wind, cold, brush, and technical terrain. Build the weather system around consequences.

What is UPF clothing: ratings, fabric science, and sun protection on the trail

UPF 50 blocks 98% of UV radiation. Learn how UPF ratings work, how fabric weave and color affect protection, whether UPF washes out, and why sun-protective clothing is more reliable than sunscreen for long days outside.

What size dry bag do I need

Liter sizing by use case: phone and wallet need 2–5L, clothes need 10–20L, a sleeping bag needs 20–35L, and a full pack liner needs 35L+. Real numbers, a multi-bag system, and kayaking vs backpacking sizing.

A hiker in a rain shell with hood up on a misty temperate rainforest trail among moss-draped trees in the Pacific Northwest

A PNW rain packing guide for Olympic, North Cascades, and Redwood trips: 2.5-layer vs 3-layer shells, the wet footwear debate, pack liners vs rain covers, and insulation that survives moisture.

What to pack in a hiking first aid kit

Exactly what belongs in a hiking first aid kit, from blister care and wound irrigation to trauma basics, sized by trip length and group. Build a kit that actually works.