Ergodyne - EGO16778 TREX 6315 Strap-On Heel Ice Cleats are ice grips for boots and shoes with rugged steel plates that turn boot heels into ice picks, leaving the mid-foot free for vehicle operation. Corrosion-resistant steel plate with heel-only traction has a channeled design to increase stability and will not retain ice, snow or debris so you get a tenacious grip on slippery terrain. Durable webbing with hook-and-loop strap provides a secure fit and stability for winter work or recreation. Material is lightweight and is small enough to be stored in a pocket or pack when not being worn. Rear reflective accents help make wearers more visible in dark environments. Large/Xlarge size fits U.S. men's boots in size 11 to 16.