Built to glide through water, the high-stretch silicone material is durable and hydrodynamic with a textured lining that stays put. Chlorine-resistant and hypoallergenic, this World Aquatics-approved cap keeps up with you over long miles in the lanes. Benefits:Textured lining helps increase traction for a secure fit. [] Product Details:World Aquatics approved. Hypoallergenic, high-stretch silicone material. Chlorine resistant. Silicone. Rinse in cold water and wipe inside and out after every use. Style: 93060; Color: Midnight Navy; Size: One Size; Gender: Unisex; Age Group: Adult | Nike Swim Silicone Cap in Blue, Size: One Size | 93060-440