GEAR UP AND GO. Timeless and sporty, the Nike Heritage Duffle Bag is perfect for the gym or a weekend away. Fully lined and roomy, it features a removable shoulder strap and hidden side pocket for small-item storage. Nylon fabric is durable and easy to clean. Large main zipper compartment allows for easy access. Hidden side pocket lets you secure your stuff in a sleek, no frills look. Removable strap for a clean, streamlined look.