Maintains the heel in place during power stroke, thus maximizing power transfer. HRS-100: Retention system with a 0.6-mm membrane which provides enhanced support of the heel for more power and performance.
ICE-FIL INSOLE & INSIDE HEEL CUP
Moisture control technology reacts to perspiration and converts to a refrigerant to keep your feet cool and dry.
POWER FLEX STRAP
Vented offset positioned strap extends from inside arch to outer tendons to secure placement and reduce pressure. Strap is stiff and rubberized for quick and efficient transition.