Xcel's most advanced bootie gets a major upgrade for Fall 2014, with all new TDC Thermo Dry Celliant, a revolutionary inner lining with smart fibers that recycle your body heat into infrared energy for greater warmth, increased endurance, faster recovery, and enhanced overall performance. The Drylock is loaded with more exclusive features including angled Velcro straps, seamless Drylock ankle seals, a thin yet durable sole design, and UltraStretch Neoprene. The boot is also 100% glued & blindstitched, which means a more watertight construction as stitches never fully penetrate the neoprene.