Deeluxe Vicious TFP Snowboard Boots Dupont Surlyn Highback. This highback contributes to the durability and stability of the boot C3-Lacing with BOA- One boot - three zones. The three part division of the boot allows the heel Conquest Outsole- The Conquest Outsole is made from a special EVA mixture that provides an enhanced board feel Custom Flex- The name says it all - our Custom Flex construction enables riders to adjust the support Waterproof Construction- Precise stitching and a sandwich construction ensure water can't penetrate