Superfeet Sport Ultralight insoles deliver a durable, weight-defying structure in a thin, versatile shape. Experience a light yet powerful foundation with our high-performance SuperRev(TM) foam and EVOLyte(R) carbon fiber-infused arch support. Engineered to be 25% lighter - so every step feels faster, smoother, and more effortless. Designed to fit in tight athletic and running shoes, including some without removable liners. FEATURES AND BENEFITS Contoured arch support enhances foot biomechanics EVOLyte(R) carbon fiber cap delivers weight-defying support SuperRev(TM) foam delivers lightweight energy return Moisturewick(TM) top cover helps reduce odors and keeps feet fresh Sculpted heel secures the foot as you move Superfeet insoles keep their shape, delivering reliable support and comfort for up to 12 months or 500 miles, whichever comes first Arch Height: All Arch Heights Insole Thickness: Thin Underfoot Cushioning: Soft