Made for the toughest days of cool weather cycling, the El Fito tights employ spandex throughout the seat and leg backs. Merino wool across the front and Climawool Lite Softshell fabric from the knees down for an amazing weapon in the battle for cold weather cycling comfort. 9'' zipper on back of ankle. Inseam: S=29.5'', M=30'', L=30.5'', XL=30.5'', XXL=30.5''. Pad: 4-way stretch micro-fine wool, ordor resistant, multi-dimensional 8mm chamois; Density: HAP- 50; 17.5 wool face. Keep commuting, roll the fatbike longer, ride in the face of a weather advisory. It's not a problem with the El Fito.