Smartwool Men's PhD 7" 2-In-1 Shorts Shell: 86% Polyester, 14% Elastane; Liner: 54% Merino Wool, 46% Polyester; Pocket Bag: 100% Polyester Knit in Vietnam Regular Fit; Mid Rise - Style: SW016009 Lightweight stretch-woven outer short with supportive Merino/polyester short tight inside Striped drawcord for customizable waist fit Secure zip pocket on left side and drop-in pocket on right side for additional storage Size M Short inseam: 7" (18 cm); Short Tight inseam: 6" (15 cm)