- Reebok Junior TR BP Training Backpack, unisex and one size - 16.5-liter capacity to carry everything you need - Made of 100% polyester plain knit, durable and lightweight - Spacious main compartment with easy-access zipper - Side zippered pocket to store essentials - Padded and adjustable straps for greater shoulder comfort - Ideal for carrying snacks and water, keeping you energized and hydrated - Perfect for trips to the gym, sports activities, or daily use