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Eigerjoch IN Hybrid Vest - Men's

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Eigerjoch IN Hybrid Vest

Being a part of Mammut’s Eiger Extreme line, the Eigerjoch IN Hybrid Vest is a high-performance midlayer ready for high alpine objectives. The air-permeable Pertex Quantum provides a high level of breathability while effectively sealing out wind and providing a level of water-resistance. Inside the vest, Polartec Alpha helps enhance breathability while also adding critical core warmth when you’re at rest. Putting the proverbial cherry on top, Mammut finished this well-designed layer with merino Tecnowool panels along the sides and back.


  • Highly technical vest for high alpine pursuits
  • Pertex Quantum provides weather protection
  • Polartec lining for warmth and breathability
  • Tecnowool underarm panels regulate temperature
  • High Reach Technology for mobility while climbing
  • Harness-compatible pockets for easy access
  • Item #MAMU55C
[face fabric, lining] Pertex Quantum Air 100% nylon, [insert] 67% polyester, 26% wool, 7% spandex
Polartec Alpha Direct
Center Back Length
[medium] 27.5in
2 climbing-harness-compatible zippered hand
Claimed Weight
Manufacturer Warranty
2 years


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