Waterproof Material The gym bag is made of soft waterproof oxford and polyester. Scratch-resistant, waterproof and can be cleaned easily. In the rain, clothes, books or other can keep dry. After swimming, you could also put the wet swimsuit in it. .Large Capacity Size - 48cm x 36cm x 16.5cm / (18.9'' x 14.2'' x 6.5'') Large capacity to hold a variety of items such as sportswear, shoes, sports towels, swimming gear, MacBook Pro, iPad, books, an umbrella, Bottle and other daily accessories to carry. A gym bag with plenty of space for everyday needs! .Clasp: drawstring .Adjustable Shoulder Strap & Drawstring Design The shoulder straps are comfortable soft and adjustable in length, relieves shoulder pain, free hands Drawstring design allows the backpack to be closed and opened easily. Easy to carry and very suitable for daily travel. .With zip inside pocket gym bag With zip inside pocket to stow valuable things inside. You could put the key, card or cellphone in it, the inner pocket offers maximum access to cellphone or other essentials. So you don't have to keep looking for your key. .Wide Application The backpack is suitable for many occasions, such as sports activities, training, running, yoga, swimming, camping and other indoor and outdoor activities. Ideal for sports as a comfortable gym bag or sports bag. .