Xcellent Global High Grade 3D Padded Low-waist Riding Bicycle Cycling Underwear Shorts Underpants - Breathable, Lightweight, Flexible for Male and Female FS026XL Made of 80% Spandex + 20% Nylon, gives you more flexible, lightweight and comfortable than normal cycling pants. 3D design helps improve sweat transfer for comfortable wear during long rides. High air permeability keep your body dry, the pad can quickly absorb and release sweat from the skin which can keep your body fresh. Curved cutting on the side edge, more suitable for the contour of the human body, so there is no harsh edge to rub against your skin. Suitable for both men and women.Size is optional: XS=25-27" S=28-30" M=31-33" L=33-35" XL=35-37" (waist measurement)