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Gearhead Top Pick

Mammut
Lithium 20L Daypack

4.8 out of 5 stars
20 Reviews
Current price: $101.21 Original price: $134.95
25% off
Color:Black

Size:

Quantity

Only 4 In stock

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Light, durable Lithium 20L keeps essentials organized and protected for all-day hikes

What Our Gearhead® Experts Are Saying:


"The Lithium 20L hits that perfect sweet spot for day hikes—big enough for layers, snacks, and water but compact enough that it never feels bulky. The fold-out hip-belt phone pocket is one of those small touches that makes a huge difference on the trail, and the included rain cover means I’m never worried about sudden weather rolling in."


From summit pushes to casual trail loops, the Mammut Lithium 20L Daypack delivers the thoughtful design and comfort we need for full days outside. Its streamlined 20-liter capacity keeps gear organized without overpacking, while the 3D EVA foam back panel promotes airflow to minimize sweaty hotspots on steep climbs. When the weather turns, the detachable rain cover—treated with a PFC-free DWR—keeps our layers and food dry without adding unnecessary weight.


Mammut designed the Lithium series for versatility, and this smaller model proves it. Dual compression straps secure loads of any size, the trekking pole attachment keeps gear accessible, and a fold-out hip-belt phone pocket lets us capture the view without breaking stride. Whether it’s an alpine trail, a quick after-work hike, or a travel companion abroad, the Lithium 20L adapts to every adventure with the precision Mammut is known for.


Details

  • Daypack designed for rain-or-shine hiking
  • 20L capacity appropriately sized for full days on the trail
  • Air channels in 3D foam offer extra ventilation
  • Detachable rain cover treated with PFC-free DWR
  • Carry system for trekking poles
  • Fold-out phone pocket on hip belt
  • Compression straps secure the load no matter how much is packed
  • Item #MAMU5G9
Material
100% nylon, PFC-free DWR coating
Volume
20L (1220cu in)
Support/Suspension
Contact (3D EVA foam)
Shoulder Straps
padded, adjustable
Waist Belt
detachable, padded
Hydration Compatible
yes
Access
zippered front panel
Pockets
1 zippered key, 1 zippered front, 2 mesh side
Trekking Pole Carry
yes
Compression
yes
Rain Cover
yes
Dimensions
8.6 x 20.8 x 9.4in
Claimed Weight
1lb 10oz
Activity
hiking
Manufacturer Warranty
2 years
A mountaineer in a bright orange and blue high-altitude suit rests on a steep, snow-covered cliffside under the Mammut logo.

Rise With The Mountains

Mammut has always been there since 1862. Each piece of gear is created with a spirit of innovation and Swiss quality. Mammut is made for the mountains, not the streets.

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