Men’s Thick Skin Pants are a base layer pant made with soft, plush 29% Greenplus ® environmentally friendly polyester, 64% polyester and 7% spandex a heavy weight, stretchy, double sided fleece. Provides exceptional warmth and keeps you feeling dry. Flat seam construction to prevent chaffing. Gusseted crotch and hemmed at the ankle for a comfortable fit. Low profile boxer style waistband. Antimicrobial finish. UPF rating 40+ (blocks 97% of UV).