High stretch insulating durable Roubaix fleece400 series antibacterial multi-density gel pad with micro-wick technology Silicone leg grippersAnkle zip for easy of access Reflective trim, High stretch insulating durable Roubaix fleece, 400 series antibacterial multi-density gel pad with micro-wick technology , Silicone leg grippers, Ankle zip for easy of access