100% polyester. The Nike Brasilia Duffel Bag keeps all your training gear—and more—at hand. A side compartment stores shoes separately, while inner and outer pockets help you stay organized. Use it for a trip to the gym or away for the weekend. We've got you covered. This product is made with at least 65% recycled polyester fibers. Zippered main compartment secures your training essentials. Zippered inner compartment keeps dirty shoes and sweaty clothes separate from your clean gear. Coated bottom helps shield your things from bumps, scrapes and spills.