Properties: The Nike Challenger 2.0 Waist Pack Small is a compact and functional accessory, perfect for runners and active people. It provides comfort, stability, and space for the most essential items while running or walking. Key features include a lightweight construction to reduce bounce during movement, breathable mesh on the back for comfort and ventilation, an adjustable elastic strap with a buckle for a perfect fit, one zippered pocket with an internal divider, and a reflective Swoosh logo for increased visibility after dark. Composition: Main: 65% nylon, 35% polyester; Lining: 100% polyester.