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-Shoxs high-tech polyester fibers wick moisture away from the foot and provide a cool, friction free surface to prevent blisters and other foot problems.PRODUCT FEATURES: Rearfoot Posted - Controls over-pronation and balances rearfoot. Recommended for flat or low arch feet. Forefoot Neutral - Without metatarsal support for thosenot suffering from ball-of-foot discomfort.