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Description
UBIC 40LMillet UBIC 40L The 4 Season Mountain Backpack for Bigger Days (1,230 g) Friday evening, the car loaded, a refuge booked two valleys over and a forecast that wants a bit of everything skis for the morning, a rope for the couloir, dry layers for the night. Somewhere on the walk in, thirty litres always runs out. The Millet UBIC 40L is where it stops: a 4 season mountain pack that already carries the rain cover, the side ski and snowboard carry and the
Millet UBIC 40L - The 4-Season Mountain Backpack for Bigger Days (1,230 g)
Friday evening, the car loaded, a refuge booked two valleys over and a forecast that wants a bit of everything - skis for the morning, a rope for the couloir, dry layers for the night. Somewhere on the walk in, thirty litres always runs out. The Millet UBIC 40L is where it stops: a 4-season mountain pack that already carries the rain cover, the side ski and snowboard carry and the panel access - with the volume to keep the dry kit inside the pack instead of lashed, soaking, to the back of it.
Forty litres is the size where the kit list stops fighting you. The same equipped UBIC build - integrated rain cover, side ski and snowboard carry, a suitcase-style zip that opens the bag flat to reach the bottom layer, two removable alpine straps for a rope or crampons, a breathable hip belt with two zip pockets - now with room underneath for a sleeping bag, hut layers and two days of food, the rope still riding outside where you want it. On lighter days the side compression cinches it back down so a half-full pack never sways behind you.
It's built to earn years, not seasons. A PA 210D Solution Dye main fabric over Recycled PES reinforcements and lining, water-repellent to 1,000 mm with a PFC-free DWR, and a reinforced base that takes being set down loaded on rock and refuge floors. At least 31 % recycled content, coloured by Millet's ECO DYEING for a fraction of the water and CO₂ of conventional dyeing. Millet has built mountain packs in Annecy since 1921, and repairs what wears rather than replacing it - the kind of pack you buy once and take out for a decade.
What Makes the Real Difference on the Mountain
The UBIC 40L is the size that turns a day pack into a weekend pack without losing its mountain credentials. It keeps the ski and snowboard carry, built-in weather protection, suitcase-style access and load-carrying harness, then adds the volume for overnights, hut trips and heavier winter loads.
- 🧳 Suitcase-style zip opening: reach the bottom of a full 40 L without emptying the top.
- 🌧️ Integrated rain cover: 100 % waterproof, tucked in its own pocket, out in seconds.
- 🎿 Side ski + snowboard carry: holds skis or a board over an overnight load.
- 🎒 Removable alpine compression straps: lash on a rope, crampons or a sleeping mat.
- 💧 Hydration compatible: bladder sleeve to sip on the move.
- ♻️ ECO DYEING + 31 % recycled: lower water, lower chemicals, lower CO₂.
The organization scales with the volume: two zip pockets on the breathable hip belt, a front zip pocket and a front compartment for a wet shell, two flap zip pockets for keys and cards, and a large main compartment that opens like a suitcase for packing the night before. Side compression straps cinch a half-full pack down to day-trip size, the two-buckle flap stays fast and glove-friendly, and the reinforced base handles being set down on rock, snow and refuge floors day after day.
Who This Backpack Is For
The UBIC 40L is for mountain-goers whose days run long or overnight - who want one pack that's ready for the conditions and big enough to stay out, without carrying an expedition haul on a single afternoon.
- You stay out overnight - hut trips, bivvies, two-day ski tours and traverses.
- You carry winter and safety kit - skis or a board, rope, crampons, spare layers, all with attachments that hold.
- You want one pack for the season - rain cover, suitcase access and compression so it shrinks for shorter days.
- You want real load comfort - breathable hip belt, ergonomic straps and compression that settle a heavier 40 litres.
- Lower impact matters to you - recycled fabrics, ECO DYEING, PFC-free treatment.
If most of your outings are single days, the UBIC 30L carries the same DNA in a lighter, tidier size. If you chase grams on fast alpine missions, the Prolighter 30+10L is the lighter, more technical option - though without the rain cover or panel access. But for proper weekends and overnight mountain days where you want margin, weather protection and real carry systems in one pack, the UBIC 40L is the size that fits the trip. Part of the wider Millet backpack range we carry - made to be carried for years, not replaced every season.
Technical Specifications
General Information
- Brand: Millet
- Reference: MIS2420
- Volume: 40 L
- Weight: 1,230 g
- Back length: 46 cm
- Dimensions: 63 x 29 x 27 cm (H x W x D)
- Activities: Hiking • Ski Touring • Splitboard
Materials & Protection
- Main fabric: PA 210D Solution Dye
- Secondary: Recycled PES 600D (1,000 mm, DWR)
- Lining: Recycled PES 250D (1,000 mm, DWR)
- Treatment: PFC-free DWR
- Recycled content: ≥ 31 %
- Process: ECO DYEING (low-impact)
Carry & Adjustments
- Ergonomic shoulder straps
- Adjustable chest strap
- Breathable hip belt with 2 zip pockets
- Hand support straps
- Side compression straps
- 2 removable alpine compression straps
- Metal buckles throughout
Organization & Attachments
- Flap main closure (2 buckles)
- Suitcase-style zip opening
- Integrated rain cover
- Side ski carry + snowboard carry
- Front zip pocket + front compartment
- 2 flap zip pockets + 2 mesh side pockets
- Hydration system compatible
- Reinforced base + key clip
FAQ
Not really, thanks to the compression. The side compression straps cinch a half-full UBIC 40L down close to day-pack size and stop the load shifting, so the same pack works for a big single day and a two-day trip. That said, if the large majority of your outings are short days with light loads, the UBIC 30L is lighter and tidier for that use - the 40L earns its volume when you regularly stay out overnight.
Skis ride on the sides of the pack rather than in an A-frame - balanced, and friendly to wider freeride skis - while a board straps to the back using the two removable alpine compression straps. At 40 litres the overnight kit still fits inside while the skis or board travel outside, which is what makes it a genuine multi-day ski touring and splitboard pack rather than a day sack pushed past its size.
Yes - that's exactly what it's sized for. 40 litres takes a sleeping bag liner, spare layers, refuge clothes, food, safety kit and a 1.5-2 L bladder, with skis, a board or a rope carried outside. The suitcase-style opening makes packing the night before easy, and the compression keeps it stable once you're moving. For longer self-supported trips with a full sleeping system and stove, you'll want a larger expedition pack.
Like the rest of the range it sheds weather rather than sealing against it: a 1,000 mm rating and PFC-free DWR handle snow and passing showers, and the integrated rain cover covers the real thing. On an overnight that matters more - your dry layers and sleeping kit are what you can't let get wet, so deploy the cover early and keep them packed deep. The seams aren't taped, so in a sustained downpour it's the cover, not the fabric, that keeps the inside dry.
Both share the UBIC build - eco-dyed recycled fabrics, rain cover, ski and snowboard carry, suitcase opening. The UBIC 40L earns its size when you actually pack it out - overnight layers, refuge kit, a fuller winter load - with the compression to cinch it down on lighter days. If you mostly head out for a single day, the UBIC 30L handles tighter and weighs less; choose the 40L when you regularly sleep out or carry more.
Yes, thanks to the compression. Run it part-empty for a long day and the side compression straps and the floating two-buckle flap pull the load down onto your back so it doesn't sway or ride tall. It carries best with a real load in it - that's what 40 litres is for - but it won't punish you on the days you don't fill it. A hydration sleeve sits inside for either kind of day.
A 40-litre pack that lives out of huts and car boots collects more grime than a day sack, so air it dry fully before storing and clear the pockets of damp gloves and skins. Hand wash at no more than 40 °C with a mild soap, brush off the worst rather than soaking it, and keep it clear of the tumble dryer, bleach, iron and dry cleaning that wreck the DWR. Re-proof with a PFC-free spray once water stops beading, and if a strap or zip wears out down the line, Millet repairs it in its own workshop rather than replacing the whole pack.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy