evo.com | Smartwool Long Underwear Bottoms > The Smartwool Intraknit Thermal Merino Base Layer Bottoms is made to embrace your every move. Intraknit(TM) technology is made for movement and ventilation and Merino Sport yarn blends synthetic moisture control with Merino Wool odor-resistance, making them your ultimate partner for hitting the slopes. 52% Merino Wool / 45% Polyester / 2% Elastane / 1% Polyamide Intraknit(TM) Technology Insulation, articulation and ventilation are seamlessly integrated to amplify movement and comfort during high-intensity activities. Slim Fit Our slim fit is intended to follow the contours of the body. Machine Wash Cold Gentle Cycle Seamlessly Knit Mesh Ventilation Designed to Keep You Dry and Comfortable | Women's Smartwool Intraknit Thermal Base Layer Bottoms 2026 - X-Small Black | Wool/Elastane/Polyester