Hiking Backpacks: The Real Mountain Packs, and the Daypacks That Also Hike
A hiking backpack is not just a backpack you take hiking. The ones built for the mountains carry the load on your hips through a real hip belt, hold the pack off your spine with a ventilated or contact back system, and adjust to your torso length so the weight sits where your legs can carry it. This collection gathers the three brands that build packs that way, Deuter, Millet and Klättermusen, alongside recycled daypacks from Patagonia, MeroMero and Topo Designs that hike happily on shorter outings. This page sorts them by the trip you are actually planning.
Match the pack to the outing
Day hikes, 15 to 25 litres
For a few hours on marked trails with water, a layer and lunch, you want light and simple. The Klättermusen Skrymner 20L weighs 359 grams and rides close to the body; the Gilling 20L (497 grams) adds a proper ventilated panel for warmer days. Patagonia's Terravia Pack 22L is the ultralight roll-top option in recycled ripstop, and the Topo Designs Rover Trail Pack 24L covers the trail-to-town crossover.
Big days and hut-to-hut, 28 to 40 litres
Longer days with more layers, food and safety gear are where the specialists pull ahead. The Deuter Futura Pro 36 is the range's all-rounder: a suspended mesh back that keeps air moving, and the VariClick system that dials the back length to your torso. Millet's Parmelan 35L stays under a kilo for hut trips, and its four-season UBIC 30L ships with an integrated rain cover. Patagonia's Terravia Pack 28L and Refugio Daypack 30L handle the same volumes in recycled fabrics.
Multi-day treks and alpine loads, 40 litres and up
When the pack has to carry an overnight setup, capacity and load transfer decide comfort. The Millet Prolighter 30+10L opens from 30 to 40 litres with an extension collar and carries a rope and axes outside, and the Deuter Futura Pro 40 keeps the ventilated back at trekking capacity. For lightweight multi-day routes in the wet, the waterproof Klättermusen Vide 30L carries up to 13 kg on a wire frame.
Ultralight and fast, alpine and climbing
Counting grams for a summit push or a fast loop? The Klättermusen Tjalve 2.0 10L (261 grams) and Millet's MIXT 15L (430 grams) strip everything back. For rock and approaches, the Klättermusen Bure 2.0 20L keeps the load tight to your spine, and the Millet Prolighter 22L is a 630-gram summer alpinism pack with ice-axe and ski carry.
The three mountain specialists, decoded
Three brands here are built for the mountains rather than the commute, and they divide cleanly. Deuter is the fit-and-ventilation specialist: its Aircomfort suspended back and VariClick adjustment are the answer to a sweaty back and a pack that fits someone else's torso. Millet is the French alpine brand, with ski, rope and ice-axe carry across most families and integrated rain covers on the UBIC line. Klättermusen is the Swedish premium option: lighter for its class, precisely specified down to published maximum loads, and covered by the longest warranty of the three. If your outings are long trail days, start with Deuter; if they involve a rope or a skin track, Millet; if you keep gear for a decade, Klättermusen.
The rest of the collection is honest crossover. Patagonia's Terravia and Refugio packs, MeroMero's recycled roll-tops like the Squamish V3, and the Topo Rover are excellent daypacks that handle trails well, but they use simpler back systems than the dedicated trekking packs. For a day on a marked path they are ideal; for a loaded multi-day route, the specialists carry better.
Fit and back length: the part most people skip
The single biggest comfort factor is not the brand, it is the fit. A hiking pack should match your torso length, not your height, so the hip belt lands on your hip bones and takes the weight off your shoulders. Deuter builds this in two ways: VariClick adjusts the back length across five positions on the Futura Pro, and the SL versions are cut for shorter back lengths with narrower shoulder straps and a tailored hip belt. Deuter designs SL around female anatomy, but the honest way to read it is by torso: a shorter-backed hiker of any gender is usually better served by an SL, and a taller-backed one by the standard fit. If you are between sizes, size to your back length and adjust from there.
Capacity, from summit pack to trekking load
| Volume | Representative model | Weight | Best for |
|---|---|---|---|
| 10 L | Klättermusen Tjalve 2.0 | 261 g | Trail running, summit pushes |
| 15 L | Millet MIXT 15L | 430 g | Fast single-day missions |
| 20 L | Klättermusen Skrymner | 359 g | Fast hiking, close carry |
| 22-24 L | Patagonia Terravia Pack 22L | - | Day hikes, ultralight |
| 26 L | Klättermusen Gilling 26L | 791 g | Long day hikes |
| 30 L | Millet UBIC 30L | 1,190 g | Four-season, rain cover included |
| 32 L | Deuter Futura Pro 32 | - | Committed day hikes, ventilated |
| 35-36 L | Deuter Futura Pro 36 | - | Hut-to-hut, all-round trekking |
| 30-40 L | Millet Prolighter 30+10L | 1,000 g | Bivouac, alpine routes |
| 40 L | Deuter Futura Pro 40 | - | Longer routes, light multi-day |
Weather and materials, stated honestly
Most hiking packs here are water-resistant rather than waterproof: coated fabrics with durable water-repellent finishes that handle showers, and a rain cover is the standard mountain answer to a real downpour. Two exceptions are worth naming. The Klättermusen Vide is genuinely waterproof, with taped seams and a rating above 10,000 mm. And Millet's UBIC 25, 30 and 40 ship with an integrated rain cover in their own pocket, so protection is built in rather than bought separately. On materials, the recycled credentials are specific rather than decorative: Klättermusen uses regenerated Econyl and Seawastex polyamides with bluesign approval, Patagonia's Terravia and Black Hole packs run recycled nylon and polyester, and MeroMero's roll-tops use bluesign-certified recycled nylon. Each product sheet states its own fabric and certifications.
Warranty and returns
Every order ships from France with tracking, returns run 30 days, and Eiken's own 2-year seller warranty covers everything here. Several of these brands guarantee longer: Klättermusen covers manufacturing defects for the product's normal life span, Deuter offers a 2-year manufacturer warranty plus a subsidised repair service beyond it, Millet publishes repair rates for out-of-warranty work, and MeroMero backs its packs for 10 years. When a claim is needed, we handle it for you.
Frequently asked questions
What size hiking backpack do I need?
Match it to the trip: 15 to 25 litres for day hikes, 28 to 40 litres for big days and hut-to-hut trips, and 40 litres or more for multi-day treks with overnight gear. When in doubt, size down; an overpacked small pack carries better than a half-empty large one.
Does a ventilated back really make a difference?
Yes, on warm climbs. A suspended mesh back like Deuter's Aircomfort holds the pack body off your spine so air moves through the gap, which cuts the soaked-back feeling that foam panels create. It matters most above 20 litres and in summer heat.
Which packs suit a shorter back or a women's fit?
Deuter's SL versions are cut for shorter back lengths with narrower straps and a tailored hip belt, designed around female anatomy but suited to any shorter torso. The VariClick system on the Futura Pro also adjusts back length across five positions, so one pack fits a range of torsos. Choose by your back length rather than your height.
Are any of these hiking backpacks waterproof?
The Klättermusen Vide 30L is, with taped seams and a rating above 10,000 mm. Millet's UBIC 25, 30 and 40 include an integrated rain cover. The rest are water-resistant and pair with a separate rain cover for sustained rain.
Which are the lightest hiking backpacks here?
The Klättermusen Tjalve 2.0 at 261 grams and Skrymner at 359 grams, and the Millet MIXT 15L at 430 grams. Patagonia's Terravia packs are the ultralight roll-top option with more capacity.
Deuter, Millet or Klättermusen for hiking?
Deuter for ventilation and adjustable fit on classic trail days; Millet for alpine hardware, ski and rope carry, and integrated rain covers; Klättermusen for premium, precisely specified packs you keep for years. All three carry better under load than the crossover daypacks in this collection.
What warranty covers these backpacks?
Eiken adds a 2-year seller warranty and 30-day returns to all of them. Brand cover on top: Klättermusen for the product's normal life span, MeroMero 10 years, Deuter 2 years plus subsidised repairs, and Millet 2 years with published repair rates.
Keep exploring
Each specialist has its full range decoded on its own page: Deuter backpacks for ventilation and fit, Millet backpacks for the French alpine families, and Klättermusen backpacks for technical Swedish precision. The recycled daypacks live in Patagonia backpacks, and every eco-minded pack we stock sits together in sustainable backpacks.