Home /Osprey /Ski and Climbing Packs /Osprey Nimsdai Mutant 90L Climbing & Mountaineering Backpack, Tungsten Grey, M/L

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Ski and Climbing Packs

Osprey Nimsdai Mutant 90L Climbing & Mountaineering Backpack, Tungsten Grey, M/L

Name: Osprey Nimsdai Mutant 90L Climbing & Mountaineering Backpack, Tungsten Grey, M/L
Brand: Osprey
SKU: SUM-SKI-539
Price: 96.97 USD
Availability: InStock
Rating: 4.5 (3 reviews)

4.5 (3)

$349.95 $96.97

A 90L alpine backpack created for Nimsdai Purja's K2 ascent, with technical features for superior load carry, stability, and efficient mountain movement.

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Categories : Ski and Climbing Packs

SKU : SUM-SKI-539

Description

Osprey Nimsdai Mutant 90L Climbing and Mountaineering Backpack

The Osprey Nimsdai Mutant 90 is a 90-liter technical backpack designed for high-altitude climbing and mountaineering, created in collaboration with Nimsdai Purja for his 2020 winter K2 ascent. It features a narrow profile, close-to-body carry, and Osprey's superior fit for efficient and safer movement in the mountains.

Built for Expedition Challenges

Developed and tested by athletes on the first winter ascent of K2, this pack handles superior load carry with dual ToolLocks, rope carry, snowshed backpanel, glove-friendly buckles, and strippable features.

Carrying Capacity and Suspension

The 4mm LightWire frame with snowshed fabric and ridged EVA foam provides a stable, comfortable carry even with heavy loads. The pack is designed for expeditions where you need to carry climbing gear, food, and technical equipment.

Fit, Packing, and Weight Relief

To fit the pack: adjust the torso length so the hipbelt sits at your iliac crest, then tighten shoulder straps and load lifters. Pack heavy items low and close to your back for balance.

The pack can carry up to 80 lb (36 kg) comfortably, and it includes a 3L hydration reservoir sleeve, though you can use a 2L or 3L bladder.

Features

Developed with Nimsdai Purja for K2's first winter ascent
Narrow profile and close-to-body carry enhance stability on technical terrain
Dual ToolLocks, snowshed backpanel, and glove-friendly buckles
Color: Tungsten Grey
Frame: 4mm LightWire
Model: Nimsdai Mutant
Sizes: M/L
Fabric: Snowshed fabric with ridged EVA foam
Capacity: 90 L
Features: Dual ToolLocks, rope carry, glove-friendly buckles, strippable components
Maximum Load: 80 lb (36 kg)
Product Type: Climbing and Mountaineering Backpack
Hydration Compatibility: 3L reservoir compatible
Seller: Summit Haul
MPN: Nimsdai Mutant

Product Details

Expedition-ready details include a floating top lid with removable extension, shove-it side pockets for crampons or water, and a front U-zip access for quick gear retrieval. The snowshed fabric prevents snow buildup, and the harness features a load lift with adjustable sternum strap for a locked-in carry.

Frequently Asked Questions

How do you fit and pack the Osprey Nimsdai Mutant 90 for an expedition?

Adjust torso length first, then shoulder straps and hipbelt. Pack heavy items (food, stove) low and near your back; place sleeping bag at the bottom, shelter against your back, and light gear on top. Use the compression straps to stabilize the load.

How much weight can an Osprey Nimsdai Mutant 90 carry?

Designed for heavy loads, it can carry up to 80 lb (36 kg) with its LightWire frame and supportive hipbelt.

Does the Nimsdai Mutant 90 fit a 3 L hydration reservoir?

Yes, it has a dedicated hydration sleeve that fits a 3 L reservoir, with a hose port on the shoulder strap.

What is the Osprey Nimsdai Mutant 90 designed for?

It's designed for high-altitude climbing and mountaineering, including expeditions like K2. It prioritizes load stability, durability, and easy access to gear in harsh conditions.