Breakthrough technology uses the strength of carbon fiber with ultralight foam to create one of the most innovative, high performance Superfeet insoles ever. Made to fit well in moderate to slim-fitting athletic footwear, like running shoes, bike shoes and cleats. Trim to fit your shoe size.A. HEEL CUPCradles the heel to optimize natural shock absorptionB. LOW ARCH SUPERFEET SHAPEThin, low arch orthotic support helps stabilize the foot, reducing stress on feet, ankles, knees and backC. DURABLE CONSTRUCTIONSuperfeet insoles keep their shape, delivering reliable support and comfort for up to 12 months or 500 miles, whichever comes firstD. ORGANIC ODOR-CONTROL COATINGAll natural coating helps eliminate odor-causing bacteriaE. CARBON FIBER STABILIZER CAPThe base of the insole helps support the rearfoot and provides strength and stability to the foam layer, reinforced with EVOLyte®, a proprietary carbon fiber and polymer blendF. LIGHTWEIGHT HIGH-DENSITY FOAMDurable, closed-cell foam deliver long-lasting comfort, even in slim-fitting athletic footwear and cleatsG. WIDE FOREFOOT WITH BEVELED EDGEMade to fit well in a wide range of footwear, including shoes with a wide toebox, with beveled foam edge for a better fit and perforations to maximize airflow