Nike Team Training Max Air Medium Duffel - The Nike® Team Training Max Air Medium Duffel is ideal for the serious athlete looking for a bag that provides maximum carrying comfort and several storage options. U-shaped opening. Metallic zippers with webbing zipper pulls. Webbing haul handles. Adjustable, removable textured Max Air strap spreads the weight of the bag across the shoulder to carry your gear comfortably. Zip-off, customizable front pocket adapts to any on-the-go needs.