FEATURES AND BENEFITS All of our slings are made of 600 denier ballistic polyester. The fabric is extremely durable and easy to maintain. In addition, mesh has been used whenever possible to circulate air and drop dirt. Any equipment or apparel with an opening, such as a jersey collar, face mask or arm hole, can be threaded onto the sling. When the parachute buckle is closed, everything that has been placed inside the loop is locked into the sling. Everything is attached externally and in contact with the air and sunlight. Hands-free Sling allows player to safely carry equipment and remain hands free. Using the sling allows for a more even distribution of the weight across the carrier's back and makes the equipment a lot less cumbersome to manage. Made of strong polyester used widely in the luggage industry. "Look Ma, No Smell" Innovative Hands-Free Sling carries all your equipment externally and exposes your equipment to fresh air and sunlight, greatly reducing the "international aroma of sport"