READY FOR ADVENTURE. Keep your fitness goals clearly in sight with the Nike Swim Expanse Swim Mask Goggle. The pool goggles are made from an ultra-soft liquid silicone with flex points that help to keep water out while allowing for natural facial movement. A wide head strap featuring plenty of stretch helps to ensure a comfortable fit. Durable and flexible dual-density construction helps the swim goggles stand up to the rigors of regular use. Benefits: Ultra-soft liquid silicone for optimal comfort Flex points allow natural face movement while keeping a watertight seal Wide, stretchy head strap for a smooth, comfortable fit Flexible, durable dual-density construction Product Details: Mask: Polycarbonate / Liquid Silicone, Strap: Nylon / Latex, Buckle: Polycarbonate. To obtain maximum benefit, keep lenses free from dirt and grease. Wash gently in clear cold water after each use. Do not wipe or rub the inside of the goggles. Imported. Style: NESSC151; Color: Black; Size: One Size; Gender: Unisex; Age Group: Adult | Nike Expanse Swim Mask Goggle in Black, Size: One Size | NESSC151-005