4-way stretch-woven; 65% Nylon, 24% Polyester, 11% Spandex. Anti-pill and abrasion resist. Four way stretch fabric allows maximum maneuverability while the laser perforation helps keep temperatures in check. A baggy trail style short recommended for Trail riding / Enduro racing. Raised back panel (with small stowage pocket) stretches up a little higher to guard against tire spray. Inseam is 38cm (15in), under knee, hem opening is large enough to accommodate Race Face pads and also features a slip panel to help the short glide over pads.