adidas Select Backpack. Perfect for team sports, the adidas Select Backpack uses water-resistant material to keep gear and clothing dry. Its multiple storage areas include a ventilated zip pocket for used gear and a padded sleeve for your laptop. There are hydration pockets, a trolley strap and a sternum strap for distributing weight. Padded compartment securely stores up to a 15" laptop. Water-resistant material to keep your stuff dry. Trolley strap makes traveling easy. Hydration pockets. Capacity: 32L. Approximate dimensions: 10.5" x 12.5" x 19.5". Polyurethane outer material. Polyester lining. Imported.