Prolighter 30+10L

Millet Prolighter 30+10L - The Expandable Alpine Backpack for Bigger Routes (1,000 g)

You're an hour above the car and the rope is already biting into one shoulder; the bivvy ledge is somewhere up in the dark, and the climbing doesn't even start until tomorrow. This is the outing that needs more than a summit pack and less than an expedition haul. The Millet Prolighter 30+10L is built for that middle ground: a 1,000-gram alpine pack that opens from 30 to 40 litres, carries skis, a rope and ice axes outside, and still climbs light when the difficulty kicks in.

The 10-litre extension collar is the whole argument for the pack: cinched flat it climbs like a 30, opened up it takes the layers, food and bivvy kit a multi-day route forces on you. Around it sit the tools of a real alpine sack - a side ski carry, a rope stash under the two-buckle flap, Millet's FPP™ ice-axe attachment, a hauling handle for the pitch you'd sooner haul the pack up than climb with it on your back, and a removable ergonomic hip belt you strip at the crux. You pack it to the route, not the route to the pack.

Where a rope and rack grind against it day after day, Millet armours the pack with tougher PA 1000D; everywhere else it runs the lighter PA 210D Honeycomb Robic ripstop over a Recycled PES 250D lining, water-repellent to 1,000 mm and at least 17 % recycled. Light where it can be, armoured where the route bites. It carries the name of a house building alpine packs in Annecy since 1921 - and when the collar or a strap finally wears through, Millet repairs it in its own workshop rather than selling you another.

Who This Backpack Is For

The Prolighter 30+10L is for climbers and ski mountaineers whose routes don't fit a single fixed volume - who need a pack that's compact on the climb and roomy on the approach, without carrying two bags.

• You go multi-day in the mountains - bivvy routes, hut-to-hut alpine lines, ski traverses.
• You carry a full alpine kit - rope, rack, ice axes, skis, with attachments that hold under load.
• You want one adaptable volume - 30 litres cinched for the climb, 40 litres open for the walk in.
• You still count grams - 1,000 g for a 40-litre technical pack with a strippable hip belt.

It's a specialist, so be clear on the use. There's no integrated rain cover and no panel-style access - for a do-everything 4-season pack with built-in weather protection and a suitcase opening, the UBIC 40L is the better all-rounder. And if your days are fast single ascents with a light kit, the smaller Prolighter 22L is all you need. But for committing alpine routes where the load changes between the approach and the crux, the Prolighter 30+10L is the pack that adapts. Part of the wider Millet backpack range we carry.