Cfx Carbon Fiber: built with carbon fiber technology for gravity-defying support Deep Heel Cup: cushions and protects against ground impact Dual Comfort Foam: two layers of plush cushioning helps the foot relax in the shoe Moisture-Wicking: engineered to control odor; Trim-To-Fit Design: Trim the insole to fit the size and shape of your shoe Shaped By Superfeet: the legendary orthotic shape recognized worldwide for providing a supportive energizing foundation For runners who want a cushioned, supportive ride, the Running Cushion CFX Insoles deliver a structured underfoot feel and long-lasting comfort at any pace.