Assos Ultraz Winter LS Skin Layer P1 Women

The warmest base layer for winter’s coldest and most extreme conditions, refined with an ultra-high collar, additional odorControl, and a high-stretch wool blend for body-mapped insulation.

 Merino wool and a high-stretch, high-insulation synthetic blend provide the most insulation of any Assos skin layer, with an updated neck-warmer collar construction extending protection. The ultrasoft textile doesn’t irritate like wool, and its high elasticity means it also won’t lose its shape when stretched. Instead, it moves with your body, maintaining a close, low-bulk fit to trap warmth and wick moisture—both crucial for severe winter comfort.