NWTMerrell Air Cushion in the heel for shock absorption and personalized support.Lightweight EVA foam midsole for ultimate stability and comfort.Double stretch gore for an easy on, easy off fit.Gold-rated suede leather for long-lasting quality and durability.NXT lined footbed cover for a boost of confidence against odor.M Select™ Grip outsole for durable traction that grips when and where you need it.Recycled footbed and footbed cover for protection of the feet and the environment.