Ergo Air II Outsole
Fiberglass-reinforced Road outsole and aluminum-coated insole (1) provide insulation to protect from cold.
Insulated inside shoe Made on an insulated shoe base with 40g Thinsulate and waterproof lining.
Power strap Adjusting strap on forefoot for enhanced power transfer.
Maintains the heel in place during power stroke, thus maximizing power transfer. HRS-90 : Retention system with a 0.4-mm membrane which provides good support and comfort without sacrificing performance.
Insulated inner sole for cold protection: Keeps feet warm.