A bad backpack costs you more than just comfort. It costs you the hike — early turnarounds because your shoulders are burning, gear you left at home because there was no room, frustration with straps that slip every hundred metres. The 36L Outdoor Hiking Backpack is built to solve exactly that: a full-day carry with a layout that actually makes sense, at a price that does not require justifying to yourself.
Why 36 litres is the right size for a day hike
Backpack size is one of those decisions that seems minor and turns out to matter a lot. Too small (under 20L) and you are leaving critical gear behind or overstuffing a single compartment. Too large (50L+) and the bag itself becomes the workout — an empty frame that shifts and sways regardless of the load.
36 litres is the sweet spot for a serious day hike:
- Enough space for 2 to 3 litres of water, a full day's food, a rain layer, first aid kit, and navigation tools
- Compact enough that a well-packed bag sits close to the body and does not pull you off-balance on technical terrain
- The right size for multi-compartment organisation — you can separate wet and dry gear, keep snacks accessible, and reach your first aid kit without unpacking everything
What makes this backpack work on the trail
Multi-compartment layout: the main compartment handles your large items — hydration bladder or water bottles, extra layers, food. A secondary compartment keeps mid-hike essentials like a map, headlamp, and snacks within easy reach without digging. External pockets handle the things you grab constantly: sunscreen, phone, trail mix.
Padded shoulder straps with chest clip: the straps are contoured to sit flat across the shoulder without the hard edges that cause pressure spots on longer carries. The chest sternum clip connects the shoulder straps across your chest, which shifts some of the weight off your shoulders onto your ribcage — a huge difference on ascents. Adjust it at the start of the hike and you will barely notice the bag is there.
Adjustable back panel: the strap system is adjustable so the bag can be sized to your torso length. A backpack that hangs too low puts all its weight at your lower back; one that sits too high pinches the shoulders. Getting this right makes the single biggest difference to comfort on a long day out.
Durable construction: built for the conditions you actually hike in — brush, rain, mud, rocks to sit on at the summit. The fabric holds up to regular trail use without the zips stiffening or the seams separating after a season.
What to pack in 36L for a full day
Here is a practical full-day layout for this pack:
- Main compartment: 2L hydration bladder or two 1L bottles, rain jacket or softshell, dry bag with spare socks and emergency layer
- Secondary compartment: first aid kit, headlamp, map or GPS device, phone battery pack
- Hip/side pockets: snacks, sunscreen, lip balm, small knife or multi-tool
- Front pocket: trail waste bag, lighter, anything you need at the trailhead
Packed this way, a 36L bag sits well under the 10kg carry weight that starts stressing the lower back on longer hikes — and everything is exactly where you need it.
Beyond hiking: where else this backpack works
A well-designed 36L pack is useful well beyond the trail:
- Day travel: carry-on size for most domestic flights, enough space for a full travel day with clothes, laptop, and camera gear
- Commuting: the multi-compartment layout works just as well for gym gear, lunch, laptop, and a change of clothes
- Camping approach: as a satellite bag for base camping — you leave the big expedition pack at camp and take the 36L for day explorations
- Emergency preparedness: a pre-packed 36L bag with 72-hour supplies is the standard format for emergency go-bags
Gear to pair with it
A good backpack is the foundation. Here is what makes the full kit:
- 10L Lightweight Outdoor Sport Backpack ($24.51) — compact daypack for shorter loops or as a satellite bag when the 36L is your base
- Adventurer Rucksack ($54.95) — canvas construction for a more rugged aesthetic, slightly different carry style
- Classic Euro Travel Organizer Bag ($36.95) — pairs well as a personal item when the 36L goes in the overhead
Frequently asked questions
Is 36L enough for an overnight hike?
It depends on how you pack. Ultralight hikers can do a two-day trip in 36L with a compact sleeping setup. For most people with standard gear, 36L comfortably handles a full day and stretches to a one-night trip with careful packing. For multi-day trips, a 50L to 65L pack is more comfortable.
Does it fit a hydration bladder?
The main compartment accommodates a standard 2L to 3L hydration bladder. Check whether the specific bladder you use has a hose port that works with the bag's construction — most standard bladders will fit.
Will it fit as carry-on luggage?
A packed 36L bag typically fits within most airline carry-on size limits, but check your specific airline's dimensions before traveling. It should slide into most overhead bins comfortably.
How do I adjust the straps properly?
Load the pack with your typical carry weight before adjusting. Loosen all straps, put the bag on, then tighten the shoulder straps until the bag sits comfortably against your back. Clip the chest strap at a level that feels natural across your ribcage — not too high, not across your throat. Tighten load lifter straps (if present) until the top of the bag angles slightly toward you.
Is it waterproof?
The fabric is water-resistant but not fully waterproof. In light rain it will perform well; in heavy sustained rain, use a rain cover or pack your critical items (electronics, dry clothes) in a dry bag inside the main compartment.
What is the weight of the empty bag?
The empty bag is lightweight enough that it does not meaningfully add to your carry weight — the design prioritises durability without adding unnecessary frame weight.
Can kids use it?
The strap system adjusts to fit a range of torso sizes, so older kids and teens can use it comfortably. For younger children, a smaller dedicated kids' pack is usually a better fit.
Shop the 36L Outdoor Hiking Backpack — $35.40 at Arbasa. Built for the days you actually want to remember.
