Backpack - AMS7751Material: 50% Nylon, 50% Polyester Measurement: 32 cm x 48 cm x 20 cm (30L) This Arena swim bag is comfortable to carry with padded straps and back panel and is water resistant to keep the contents dry in wet areas around the pool. The various compartments have mesh inserts for moisture control and with one main compartment and smaller pockets, this Arena backpack will house your swimwear, towel, swim accessories, water bottles and valuables.