EXTREME IN EVERY WAY. BUILT TO OUTLAST OLD MAN WINTER. TRACTION: 28 durable push-through spike construction on the heel and ball of the foot for ice-biting traction where you need it most. FIT: PRO FIT: Molded rubber walls at toe, heel, and side provide a super-durable, secure fit. DURABILITY: Built for the most rugged, extreme conditions. COLOR: Quick-release buckle & strap system for easy on/off. SPECS: 2 lbs 8 oz/pair SIZES: M: 11.25 X 4 Inches. L: 12.75 X 4.25 Inches. XL: 13.5 X 4.5 Inches. XXL 14.25 X 4.75 Inches.