Double Wrapped Vulcanized construction with G6 Foam Polyurathane insole and Flex Shield Rubber Underlay in toe for durability. Made in the USA or Imported Rubber sole Double Wrapped Vulcanized Construction G6 Foam Insole One Piece Vamp With Flick Shield Rubber Underlay Soft Cuff Achilles Foam Pad Heel Halo Fit System With Integrated Lycra Tongue Straps