Heelys Rebel, Grey/Royal/Orange, One Size Logoed backpack with large main compartment featuring front organization pocket and mesh side pockets Padded S-shaped shoulder straps Large Main Compartment. Front Pocket with Organization. Heelys Wheel Pocket External Water Bottle Pouch Padded S-Shape Shoulder Straps Air Mesh Strap Padding Air Tread Back Panel with Air Mesh