Alpine Lightweight Backpack 20L



Fit: One Size

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A lightweight ski touring backpack intended for half day or full day missions. Read More
Recycled Polyamide
Recycled Polyamide
Product Description
Equipment No: 40398U02
A lightweight ski touring backpack intended for half day or full day missions.

Ull is a well ventilated and ergonomic ski touring backpack, perfect for back country adventures. The backpack can be compressed or extended to fit you needs and is loaded from the top with a chinch closure system that allows one hand opening and closure. The inside of the backpack features a safety pocket for avalanche tools but can also be used for organizing gear. The loop webbing on the outside of the backpack makes equipment attachment easy, like ski poles or an ice axe. Skis are easily attached on the sides of the backpack. Ull backpack allows for maximum movability with its S-shaped shoulder straps. The backplate of the backpack can be removed to achieve an even light weight.


  • Sternum straps with 4-point attachment for free movement and stability and hip belt with safety closure ensures optimal weight distribution
  • Increased stability and improved movements with top tension locks
  • Internal safety pocket to keep avalanche tools
  • Adjustable size with compression straps
  • Side zip allows easy access to your essentials while on the mountain
  • Equipment holder allows the attachment of poles and ice axe to the pack
  • Removable back plate to make the backpack even lighter
  • Prepared for use with hydration system
  • Dimensions: 58 x 16 x 28 cm
  • Recommended Max. Load: 8 kg
4-S System®

4-S System®

Divides pressure from the sternum strap evenly across the chest.

Cord Loop Webbing

Cord Loop Webbing

Easy attachment of accessories.


768 g


Materials & Care


Retina® - 50% Post-Consumer Recycled Polyamide, 50% Pre-Consumer Recycled Polyamide, 70D


Hardur® - 65% Polyamide, 22% Polyester, 13% Aramid (Kevlar fiber*), 270 g/m²
*Kevlar® is a trademark or registered trademark of affiliates of DuPont de Nemours, Inc.
Fluorocarbon Free

Fluorocarbon Free

Size and Fit
  • Regular fit, body back length 47-52cm
  • Lightweight, designed for long day wear
Size help and equipment measurements

Having the right equipment can be the difference between a good day outdoors and an amazing one. We offer a wide range of technical products, and to make it easier for you to find your ideal choice we have put together some guides to help make the selection easier.


Sustainability permeates everything that we do at Klättermusen. From the constant improvements in finding more environmentally sustainable materials and fabrics for our products, to ensuring production and manufacturing with a minimal ecological footprint. Thank you for choosing environmentally friendly equipment with the following labels.

Fluorocarbon Free


Den lette Ull-serien gjør skiturer og frikjøring litt enklere. Velg mellom 20L og 30L for å maksimere det neste skieventyret ditt.

Compatible Accessories