When fashion meets function. AOSTA 7.0 RUBBER COMPOUND - High-density outsole provides unsurpassed durability from heel-to-toe 180 PSC PLANTAR - A 180 degree thermal plastic Plantar Support Chassis that enhances mid-foot stability SURGELITE - Lightweight, flexible, and durable cushioning technology for maximum comfort DURAWRAP FLEX - A durable, yet light material that provides protection and flex so there is no break-in period ORTHOLITE SOCK LINER - The unique open-cell structure of OrthoLite foam creates a moisture management system, helping to move moisture away and provide a cooler, drier, healthier environment