Description  Moisture-wicking base layer     •    Double-knit, active-seam construction with a smooth face and micro craters for comfort and to capture heat, decrease friction, and let your body breathe and regulate temperature     •    Moisture-wicking properties for odor control and rapid drying     •    Pre-shrunk for an out-of-the-box fit Material ORIGIN NANO WOOL® 50% Repreve® Polyester / 25% Wool / 25% Tencel™ 6.2 oz Care & Information WASH COLD. NON-CHLORINE BLEACH. TUMBLE DRY LOW. DO NOT DRY CLEAN.