2-pack; 5" inseam; 60% cotton/40% polyester jersey; 135 GSM/4.0 oz Rugged Flex technology for ease of movement Smooth flatlock seams for comfort; contoured front with fly Brushed Y-split waistband elastic with concealed stitching for comfortable fit To determine sizing, measure the fullest point between your natural waist and crotch; men's sizes are Small (28-30"), Medium (32-34"), Large (36-38"), X-Large (40-42"), 2X-Large (44-46"), 3X-Large (48-50"), 4X-Large (52-54").