Tested in the harshest environment on one of the world's toughest mountaineering objectives, the Osprey Mutant Nimsdai 90 was built to provide superior load carry and streamlined stability for safety in high alpine environments. This special edition pack was developed and tested by Nepalese mountaineer Nirmal "Nims" Purja and his team upon a historic 2020 winter ascent of K2. At the time, it remained the only 8000 meter peak unclimbed during the winter season. Starting with a narrow profile and close-to-body carry for a secure fit, the pack is designed to safely carry a myriad of alpine gear.
The pack's suspension system uses a 4mm LightWire frame to support loads of up to 60 pounds. A ridged EVA foam backpanel cushions the load and sheds snow easily. Padded shoulder straps enhance fit and load-hauling capability, as does a contoured hipbelt. The adjustable sternum strap also has a built-in emergency whistle.
Available in two sizes, the Small/Medium accommodates torso lengths ranging from 14"-17" and the Medium/Large best fits 17"-21" torso lengths.
The top-accessed main packbag has a protective lid that can be removed entirely to reduce the weight of the pack. A zippered pocket in the lid aids in gear storage and organization. An integrated FlapJacket panel pulls forward to protect the packbag when the lid has been removed.
The pack is designed to carry an abundance of climbing and alpine gear. There are dual side ski attachment loops, deep side wand/snow picket pockets, buckled ice tool attachment slots, a removable multi-position helmet carry net, three-point haul system, and a hipbelt with gear loops and ice gear attachment points. The adjustable front pocket is reinforced with foam to accommodate crampons or snowshoes. Other features include two under-lid rope attachment points with an adjustable strap, multiple compression straps, reinforced gear attachment loops, glove friendly buckles, and an internal sleeve for a hydration reservoir (sold separately).
Made with bluesign approved materials and featuring a PFC/PFAS-free DWR, the pack has a lightweight but durable construction you can rely on in high-intensity situations. Gridded Nanofly (UHMWPE) panels are extremely tough and abrasion resistant.
The Osprey Nimsdai Mutant 90 climbing pack is available in your choice of size options.