Great for Slim-Fitting Athletic Footwear Breakthrough design combines the strength of carbon fiber with ultralight foam to create one of our most innovative, high performance Superfeet insoles ever. PRODUCT FEATURES A. LIGHTWEIGHT HIGH-DENSITY FOAMDurable, closed-cell foam deliver long-lasting comfort for tight-fitting athletic footwear B. DURABLE CONSTRUCTIONSuperfeet insoles keep their shape, delivering reliable support and comfort for up to 12 months or 500 miles, whichever comes firstC. CARBON FIBER STABILIZER CAPThe base of the insole supports the rearfoot and provides structure and stability to the foam layer, reinforced with EVOLyte®, a proprietary carbon fiber & polymer blendD. LOW-PROFILE DESIGNThe thinnest Superfeet insoleE. FOAM PERFORATIONSPerforations in the midfoot and forefoot reduce weight and improve breathability F. WIDER FOREFOOTAccomodates a wide range of footwear G. BEVELED EDGEThe beveled foam edge improves the fit in tighter fittinng footwearH. SUPERFEET® SHAPEThe low-profile shape helps stabilize and support the foot, which can help reduce stress on feet, ankles and knees I. ODOR-CONTROL COATINGAll natural coating that eliminates odor-causing bacteria J. HEEL CUPStructured heel cup helps stabilize and support the foot and positions the heel to naturally absorb impact