XDS-AIR neoprene Lined with our Water-Wicking Insulative Jersey. * TECHNOBUTTER NEOPRENE is the most advanced super stretch neoprene available on the market. 17% lighter, 30% less water absorption with quick dry properties. * DOUBLE SUPERSEAM WELD All New narrower silicone-based urethane seal applied to both sides of a triple glued seam (Stitchless) 60% Thinner and Lighter. * O"Neill"s Super Seal Cuff is new is fused to create a very low profile at the cuff ending creating the best seal ever. * Patented Z.E.N. Zip Entry Featuring a pullover internal neck seal that blocks out water for maximum performance. Any water that penetrates the Z.E.N. Collar or Super Short Zip is blocked by the Barrier and forced out the Drain Hole.