Backpack Under Armour Scrimmage 2.0-Gry. Backpack Under Armour Scrimmage 2.0-Gry. Under Armour children's backpack, which has two main and smaller front pockets. The material used with Storm1 technology will keep the contents of the backpack dry even in bad weather. Inner pocket for a laptop in size 15". Side mesh pockets for bottles. Padded back, adjustable straps made of breathable material and comfortable top handle. Dimensions: 47 x 32 x 17cm, 26.5L. Editing by One Size Fits All. Technology: HeatGear (a unique, highly breathable material that makes sweat fast). Material: 77% Polyester, 23% Nylon