DURABLE AND MULTIFUNCTIONAL - Made of high quality waterproof and tear-resistant fabric, which is lightweight and can be used for a long time. You can use this fashionable gym bag for short weekend trips, sports, swimming, college, office, shopping, outdoor sports like hiking and picnic. Dimensions: 42-58(adjustable) x 29 x 15 cm.STYLISH AND USEFUL DESIGN - Roll-top design makes your daypack look trendy, USB charging port on the side is easy to charge your phone when you are out, waterproof zipper on the outside to protect your personal belongings from getting wet on a rainy day . Cushion padded back support, adjustable shoulder strap, chest strap with whistle help to relieve stress and keep you safer.