AERO|TECH|DESIGNS Women's Century Thick Padded Bike Shorts -Butt Pillow- Made in USA 88% polyester / 12% Spandex Made in USA Fabric is a knit 12oz 83% polyester 17% Lycra with a 6 way stretch. The high tech material is a wicking polyester with all way stretch that is very cool in the heat. The compression from the Lycra spandex supports your muscles during exercise. Cross-grain cutting maximizes stretch performance to support cycling. 8-panel construction is designed with curves for a women's anatomical position on bike. Smooth and seamless between the leg reduces opportunity for abrasion and saddle sores. CAUTION: This fabric is not a yarn dyed knit like all of our other fabrics, so it may leach color if worn without first washing. Machine wash before using. Women's Sizes X-Small 2-4, Small 6-8, Medium 8-10, Large 12-14, X-Large 14-16, 2X-Large 18-20, 3X-Large 22-24, 4X-Large 26-28, 5X-Large 32+ Fabric is a knit 12oz 83% polyester 17% Lycra with all way stretch The high tech material is a wicking polyester with six-way stretch that is very cool in the heat The compression from the Lycra spandex supports your muscles during exercise Cross-grain cutting maximizes stretch performance to support cycling 8-panel construction is designed with curves for a women&#039;s anatomical position on bike Smooth and seamless between the leg reduces opportunity for abrasion and saddle sores Waist elastic is soft, 1&#034; non roll with cover stitch hems Soft, non-binding silicone gripper elastic with a flat 3-step zig zag hem.