Permanent studs for maximum durability Tungsten carbide studs for greater wear High-profile studs for aggressive ice traction Deep tread for traction on loose snow Industrial stength ice cleat Dual pull tabs in rear for easy on and off Lightweight and compact High visibility blue and gray Industries used in: Oil, Railroad, Delivery, Utility, DOT HIGH-PRO is the most aggressive of the Winter Walking's industrial strength yet lightweight line of ice cleats. The traction comes from 26 permanently molded "high-profile" tungsten carbide studs for maximum durability. The HIGH-PRO is used in a wide variety of work settings including oil field workers, railroad employees, utility workers, major courier companies and much more. Size M : 7 - 8 1/ 2 Size L : 9-10 1/2 Size XL: 11-13