Kuhl Women's Reactiv Lite Grid Bottom

A grid-fleece base layer bottom with a temperature-regulating streak, the Kühl Women's Reactiv Lite Grid Bottom sits close to the skin and disappears under everything else you wear. A gridded interior face and articulated shaping mean it moves with your legs and breathes when you heat up, so you feel dialed in rather than bundled.

Why we like it:

The gridded backing is the quiet hero here; those little channels hold warmth while giving sweat somewhere to go, so you stay comfortable whether you are skinning uphill or sitting on a cold lift.

Features and Functions:

Kühl builds the Reactiv Lite Grid Bottom from a 100% polyester grid knit around 140 GSM with a heavier 170 GSM zone, and the inside face carries a gridded pattern that promotes air circulation, wicks moisture, and packs down small. The yarn is infused with graphene for temperature regulation, dispersing heat when you work hard and holding body warmth when you cool off, while a yarn-infused anti-odor treatment lets you wear them longer between washes. Kühl's 3D articulated patterning follows the shape of your legs so the bottom stays put under a shell.

Fit and Sizing:

Cut fitted and close to the body, these layer cleanly under ski pants or tights without bunching. These land right where the size chart says.

Bottom Line:

This is the layer you reach for when the forecast swings from cold mornings to sweaty climbs. It is best for skiers and split-boarders who run hot and cold in the same day and want a bottom that adapts without adding bulk.