INBIKE Foam Padded Elastic Material Cycling Underwear, Riding Up-proof The shorts are 90% spandex,The mild compression they offer is essential to prevent injure. Help heat circulation. Anti-shock. The soft foam pad molds to your body and aids pelvic rotation as you cycle. Riding-up proof leg opening.Elastic waist band Light weight. The boxers weigh about 6 oz. Only 6.99 dollars for the last several pieces in size XL with original price 20.99 dollars! Seize the chance!