Large Capacity - The size of these drawstring bags is 17.7" x 13.7", which guarantees maximum capacity, including a large compartment for school and sports, such as books, football or basketball 2 side mesh pockets for placing water or Inner zip pocket for phone, passport, keys, wallet, etc.Portable and Lightweight - The gym bag is very lightweight (0.48lb). It can be easily folded to fit anywhere without adding extra weight. Dual drawstring closures allow you to pack things quickly and take them on and off easily. You can adjust the strap by untying the knot at the bottom and knotting it again. You can wear it over one shoulder or shoulders .Clasp: zipper .Durable and Waterproof - This PE gym bag is made of polyester, which is smooth and not easy to wrinkle and fade. You don't have to worry about cracks. Made of waterproof and thick fabric to protect your belongings well (Note: It can only be water-resistant and cannot be exposed to rain or soaked in water for a long time) .Easy to Clean-- Because our gym bag is made of waterproof fabric, most of the surface dirt can be wiped off directly. If it's a permanent stain, you can wipe it off with a damp cloth and the plain black is durable and stylish.Widely Used - The drawstring backpack is very suitable for a variety of activities, such as swimming, fitness and other outdoor sports. A perfect and reliable backpack for men and women, suitable for gym, school, commuting, athletics, travel. camping, hiking, theme parks etc.