XCEL Size Chart Xcel's most advanced fullsuit 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. In the Drylock, TDC is featured in a diamond patterned high pile chest for core warmth, and an infrared print low pile shoulders and full lower body. The Drylock is the only fullsuit series with a 100% waterproof zipper, and Xcel's FusionWeld technology, the most durable, stitch-free, maximum all-way stretch seam construction available. A full water-repellent Quick Dry Fiber exterior and Xcel's exclusive Drylock Wrist Seals are just a few more of the many features that make the Drylock the most high performance fullsuit. Features: - Style#: MQ43DRP4-BLX - TDC Thermo Dry Celliant High Pile: An Xcel exclusive, TDC Thermo Dry Celliant is the warmest wetsuit lining ever. This revolutionary material features clinically proven Smart Fiber Technology that converts body heat into usable infrared energy for greater warmth, increased endurance, faster recovery, and enhanced overall performance. TDC is also faster drying and lightweight, in and out of the water. The diamond-patterned TDC is a high pile, extra plush lining for even greater core warmth. - TDC Thermo Dry Celliant Low Pile: An Xcel exclusive, TDC Thermo Dry Celliant is the warmest wetsuit lining ever. This revolutionary material features clinically proven Smart Fiber Technology that converts body heat into usable infrared energy for greater warmth, increased endurance, faster recovery, and enhanced overall performance. The infrared print TDC is a low pile material for maximum flexibility, and is faster drying and lightweight, in and out of the water. - Magnetic Zip Closure: Double magnets - one on zipper tab and one on attached zipper flap - securely lock zipper in place, with easier and quicker release than traditional snap locks. - Crossover Neck Entry: Overlapping inner front and back neck panels (underneath the zipper flap) stretch to allow extra wide, step-in-through-the-neck entry. - Quick Dry Fiber: Fast drying, hydrophobic outer lining promotes maximum warmth. - Ultrastretch Neoprene: Comfortable, lightweight neoprene with softer foam and a tighter weave textile for less water absorption and better durability. - Fusion Seam Technology: Inner waterproof stretch Fusion taping fuses seams together; used primarily in the upper body where maximum flexibility is required. - Drylock Wrist Seals: Exclusive "donut seal" construction keeps water out and forms a snug, comfortable seal. - Less Seam = More Stretch: Smarter product design means minimizing seams to maximize stretch. Any seams used are always pre-bent and contoured for a truly engineered fit. - DuraFlex Knee Panels: Contoured, durable panels that stretch with you.