Mammut Lithium 20 20 L Backpack Black, Blue

With a 100D Nylon Triple Ripstop main fabric that shrugs off abrasion, the Mammut Lithium 20 is built to endure rugged trails and alpine scrambles. Its 20-litre capacity and CONTACT VENT™ back system keep you cool and balanced, while the PFC-free DWR finish adds weather resistance without harming the environment.

Overview

Designed for hikers, trail runners, and mountaineers, this unisex pack combines lightweight durability with smart organisation. The top zipper opens wide for easy access to the main compartment, and the hydration sleeve accepts up to a 3-litre reservoir (sold separately). Five external pockets—two stretch side pockets, two zippered hip belt pockets, and a zippered front pocket—keep essentials within reach.

What stands out

• CONTACT VENT™ back system promotes airflow to reduce sweat on demanding ascents.
• Speed trekking pole attachment and gear loops let you secure tools without digging into the pack.
• Removable padded hip belt and adjustable sternum strap fine-tune the fit for any body shape.
• Partially recycled materials and PFC-free DWR reflect Mammut's commitment to sustainability.

Technical details

• Capacity: 20 L
• Main material: 100D Nylon Triple Ripstop
• Base material: 210D Nylon Full Dull Hitra
• Back system: CONTACT VENT™
• Hydration system compatible: Yes (up to 3 L)
• Rain cover included: No
• External pockets: 5 (2 stretch side, 2 zippered hip belt, 1 zippered front)
• Attachment points: Speed trekking pole attachment, gear loops
• Shoulder straps: Padded, anatomically shaped, breathable
• Hip belt: Padded, removable
• Sternum strap: Yes, adjustable
• Main compartment access: Top zipper
• Closure type: Zipper
• Intended use: Hiking, trail running, mountaineering, multi-pitch climbing
• Sustainability: PFC-free DWR, partially recycled materials
• Gender: Unisex
• Frame type: Soft frame

Our verdict

The Mammut Lithium 20 strikes an ideal balance between featherweight comfort and trail-ready toughness. Its ventilated back panel and versatile pocket layout make it a top choice for fast-paced adventures where every gram counts.