The Nike Swim Dry Bag features a lightweight design that offers maximum water protection for your valuables. The roll-top opening helps create a seal that can withstand leaks for up to 30 minutes when submerged one meter. Benefits:Removable adjustable crossbody strap allows for customized travel options. Roll top opening with buckle closure maximizes storage space. [] Product Details:Waterproof TPU. To ensure iPX-7 waterproof protection, roll top down to properly close. 5L Capacity. Durable heat-welded construction. Body:Thermoplastic Polyurethane; Strap:100% Polyester; Binding:100% Polyester. Bag can be rinsed in clear cold water, and dried with a soft cloth. Do not machine wash, do not machine dry, do not dry-clean, do not bleach. Style: NESSF147; Color: Black; Size: One Size; Gender: Unisex; Age Group: Adult | Nike Swim Dry Bag (5L) in Black, Size: One Size | NESSF147-001