Product Features Fluid Foam/UltraFlex neoprene Breathable flatlock stitch construction Back zip entry with heavy duty Entry System Wind resistant smooth skin chest and back panels Fully adjustable double super seal neck collar Strategic seamless paddle zones Krypto knee pads Minimal seam design for insane flexibilty, fit and durability Aqua Alpha: eco friendly solvent glue that is water based and free of VOC's Limestone-based neoprene sourced from Japan