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. Removable adjustable crossbody strap allows for customized travel options. Roll top opening with buckle closure maximizes storage space. Waterproof TPU To ensure iPX-7 waterproof protection, roll top down to properly close. 20L Capacity Durable heat-welded construction HAND WASH COLD SEPARATELY. DO NOT BLEACH. LINE DRY. DO NOT IRON. DO NOT DRY CLEAN. Body: Thermoplastic Polyurethane; Strap: 100% Polyester; Binding: 100% Polyester