Alpinestars Mens Manual Shorts 100% Other Fibers Imported Multi panel construction Double seam reinforcement Side waist adjustment 100% Polyester/Lining: 88% Polyester/12% Spandex Multi-panel construction incorporating an advanced poly-fabric for performance and comfort Incorporates a breathable stretch liner and chamois crotch padding, which is connected with snap-fast buttons Additional semi-auto locking zippered side pocket with internal headphone conduit to securely house MP3 player or phone Elasticized accordion rear yoke for optimized maneuverability