Smartwool PhD HyFi Training Glove wool Available in unisex sizes XS (6-6.5 inch hand size), S (7-7.5 inch hand size), M (8-8.5 inch hand size) and L (9-9.5 inch hand size). Measure around flat hand at the knuckles; do not include thumb - and - measure from base of palm to end of middle finger. Use largest of the two measurements. HyFi Terry Back knit construction, 45% nylon, 39% Merino Wool, 16% elastane. Contoured seaming with reinforcement at thumb and index fingers for a bulk free fit. Stitched-on panel on thumb and index finger for use with touch screen. Silicone grippers on palm and fingers.