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Built for the whole day.

The only pants you need for rugged approaches and tricky routes, Mammut's Alnasca Pants are specially designed to optimize your climbing performance. With a climbing-specific cut, a gusseted crotch, and spandex-infused material, you've got an ideal range of motion to help you pull off move you need to make. Loose elastic in the waistband gives you a comfortable and secure fit, even with a harness on. You've got pockets in the front, leg, and rear for storage of any gear or snacks you need.

  • A versatile pant built for the approach and the climb
  • Stretchy fabric with crotch gusset gives you free movement
  • Elastic in the waistband provides a comfortable fit with a harness
  • Multiple pockets hold small pieces of gear
  • Adjustable at bottom leg hem for versatile fit
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Comfort is key

  • Familiarity: I've put it through the wringer
  • Fit: True to size

Waist band that allows for comfort all day long. Whether hiking or climbing these pants give maximum mobility. The stretchy elastic in the waistband provides a great fit with a harness.