Size: 15.7" x 19.7" Materials: Nylon Structure: One large compartment, one internal pocket, one front pocket, Two side mesh pockets The multifunctional drawstring backpack is for basketball, gym clothing, sport towel, ipad, textbooks and daily supplies. Internal Zipper Pocket Inner zipper pocket is great for keys, coins and other valuables items. Improved Shoulder Straps Upgraded shoulder straps for smoother use. You can adjust the length of the straps by knotting the straps. Two Side Mesh Pockets Two mesh side pockets can be used to hold your water bottle and umbrella. Drawstring Closure Drawcord closure doubles as shoulder straps, which can free up your hands and relieve shoulder stress. It is easy to access your personal items. Water-resistant Material The material of our toiletry bag is premium high quality, water resistant, and tear resistant.