Aquamentor 50" ExoTube Strong, durable nylon mesh that completely encases the tube - eliminating splitting Bonding the mesh to the foam creates a textured surface, providing the rescuer with a reliable, firm grip on the tube 6 Foot Towline strap extends through the entire length of the tube 2 inch wide, Adjustable Buckle Shoulder Harness gives lifeguard better fit and more comfort Velcro Towline Tie-Down eliminates tripping hazard while on patrol or responding to an emergency