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Osprey Introduces Mutant Nimsdai 90 for Fall 2022 Engineered for the Historic K2 Winter Ascent by Mountaineer Nirmal “Nims” Purja MBE

January 11, 2022

Media Contact

Julie Campagnoli
JAM Collective

Cortez, CO

Osprey, a leader in creating top-quality, high-performance innovative carry solutions, announced today the launch of the Fall 2022 Mutant Nimsdai 90 created for Nepalese Mountaineer and Osprey Ambassador Nimsdai “Nims” Purja MBE and his team who were the first ever to summit K2 in the winter of 2020. Even in the most favorable summer climbing conditions, K2 has earned the reputation of the “Savage Mountain,” and at 8611 meters (28,251 feet) remained the only 8000-meter peak unclimbed during the winter season.

“Tested in the harshest environment on one of the world’s toughest mountaineering feats, the Mutant Nimsdai 90 was built to handle even the heaviest of loads in a streamlined pack that delivers stability when it matters most,” said Erik Hamerschlag, senior product manager, Osprey.

The Mutant Nimsdai 90 is designed for  technical alpine-specific adventures with its Dual ToolLocks, rope carry, snowshed backpanel, glove-friendly buckles and strippable features. A narrow profile, close-to-body carry and Osprey’s superior fit makes for efficient and ultimately safer movement in the mountains.


  • Removable top pocket with stowaway FlapJacket
  • Under-lid rope attachment with adjustable webbing strap
  • Dual ToolLocks with bungee tie-offs
  • 4mm LightWire frame
  • Snowshed fabric backpanel
  • Stretch woven mesh harness over EVA foam
  • bluesign®approved Fabric (PFC/PFAS-free DWR):
    • Main: 210D recycled nylon grid nanofly
    • Accent: 210D recycled high tenacity nylon
    • Bottom: 600D recycled high tenacity nylon

About Osprey

Founded in 1974 and based in Cortez, Colorado, in the foothills of the San Juan Mountains, Osprey designs the highest performing and longest lasting carry solutions on the market including technical packs for outdoor, travel and everyday adventures. 

In addition to creating top-quality packs, the Osprey team is focused on becoming the most progressive, transparent and sustainable hardgoods brand in the world. From raw materials and chemistry benchmarks to progressive factory code of conduct agreements and programs that extend a product’s end of life, Osprey is taking a truly holistic approach and looking at every aspect of their business to ensure they leave as little trace possible. Osprey’s dedication to create innovative, high performance, sustainable gear reflects the brand’s love of adventure, devotion to the outdoors and steadfast resolve to leave the world better than they found it.

To learn more about Osprey and its products backed by their industry leading All Mighty Guarantee, visit Osprey products can be found online at and in specialty retailers in over 60 countries worldwide. Follow all brand updates on Instagram (@ospreypacks), Facebook (@ospreypacks) and Twitter (@ospreypacks).