SmartWool Women's PhD Printed Tight 44% Nylon 36% Merino Wool 20% Elastane Knit in Vietnam Knitting method concentrates Merino against skin and nylon/elastane against the elements Draw cord for customizable waist fit Secure zip pocket on back with semi-auto locking zipper pull and drop-in pocket on left side for additional storage 360 reflectivity for visibility - Size M inseam: 27.5" (70 cm) Slim Fit; Mid Rise - Style: SW015092