EXCLUSIVELY OURS! This tri-density Lynco orthotic made by Aetrex delivers all of the benefits from before with added Copper Technology, which eliminates bacteria and fungi, offers maximum protection, impact absorption and cushioning comfort for any activity. A 3.5mm layer of IQ150" Memory Foam forms to your foot for customized comfort, and a Poron® bottom layer offers exceptional shock absorption, dimensional stability and memory retention.3.5mm of IQ150" Memory Foam forms to your foot.Poron® bottom layer.Gentle arch support.Posted heel to realign the rear portion of the foot.WC2220M