Heat Holders Women's Ultra Lite Base Layer Long Sleeve Shirt - Heat Holders Women's (Ladies) ULTRA LITE Base Layer Tops are a light weight thermal base layer ideal for everyday cold. Dual bushing supersoft HeatWeaver yarn is carefully brushed both inside and out to maximize warmth and softness Perfect stretch Flat comfort seams Moisture and odor managment 84% Polyester, 16% Elastane 1 Pack