Dimensions height 40 cm width 25 cm volume: 10 lt product outer fabric: it is made of waterproof impertex fabric. product inner fabric: polyester lining product features: it has a back strap. the back straps are padded. it is large enough to take towels, t-shirts, shorts, sports shoes, shampoo and tablets. areas of use: suitable for fitness, pilates, football, trekking, hiking, daily and sports use. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.