The Aetrex Lynco L405 is designed specifically for comfort, support and weight redistribution in athletic, walking and comfort footwear. These tri-density orthotics feature a Pro-Shox® top cover for superior cushioning and shock absorption. Pro-Shox’s high-tech polyester fibers wick moisture away from the foot and provide a cool, friction free surface to prevent blisters and other foot problems. The rearfoot of the Aetrex Lynco L405 is cupped which cushions and stabilizes the heel. The forefoot has a metatarsal support which comforts the ball of foot and redistributes weight from the metatarsal area. The Aetrex Lynco L405 is recommended for medium to high arch feet.