The Arc'teryx Rho Women's Bottom is a lightweight fleece base layer built for steady efforts when temperatures dip. It traps heat, wicks moisture, and keeps a soft, fleecy feel against the skin, all in a low-profile package that layers under anything. It is the cold-weather foundation that disappears under your pants and just keeps you comfortable.

Why we like it:

The triangle-shaped gusseted crotch is the detail that makes it move, delivering real freedom of movement on steep skin tracks and high steps. Chafe-free seams throughout mean all-day wear without hot spots.

Features and Functions:

The Rho Bottom is made from a light fleece base layer fabric for soft warmth and strong moisture management. A triangle-shaped gusseted crotch delivers freedom of movement, chafe-free seams run throughout, and a low-profile waist with a high rise makes layering easy and comfortable.

Fit and Sizing:

A light, next-to-skin fit aids warmth and moisture transfer and layers invisibly under ski or hiking pants. True to size, built to disappear beneath your pants.

Bottom Line:

As the lower half of a cold-weather layering system, the Rho Bottom is best at active warmth for skiing, touring, and winter hiking. A breathable base that keeps your legs comfortable through long, cold efforts.