Zpacks Octa Fleece Thermal Bottoms sawyer micro The document pouch is the

The document pouch is the same quality materials and very robust for keeping those items safe

our ultralight long-sleeved button-up is the ultimate choice for adventurers looking for technical performance with a sophisticated look

From the boardroom to the backcountry

*The length has been increased and is in effect across all sizes as of November 2025 thanks to feedback

Zpacks Octa Fleece Thermal Bottoms sawyer micro The document pouch is theZpacks Octa Fleece Thermal Bottoms beat the warmth and weight of all other long underwear in their class. Designed to be worn under your hiking pants in frigid weather, under shorts in cool weather, or worn as an ultralight sleep layer, these leggings are unmatched when ounces count. Octa Fleece features a soft, fluffy interior that traps warmth and keeps you cozy, and an abrasion resistant exterior that withstands wear and tear. Check out the rest of