Xcel Size Chart The Infiniti features a watertight X2 front entry system and TDC Thermo Dry Celliant, Xcel's warmest wetsuit lining ever, in the front and back torso. TDC's clinically proven Smart Fiber Technology recycles your body heat into infrared energy for maximum warmth and enhanced performance. In the Infiniti X2, TDC is featured in an infrared print low pile in the front and back torso. The lower body is lined with Quick Dry Lining to improve warmth and overall performance. Additional premium seam and material innovations make the Infiniti a must-have for staying warm and comfortable in all conditions. Features: - Super warm TDC Thermo Dry Celliant lining - X2 front entry system with crossover neck entry, two part Smoothskin hem seal, and magnetic zip closure - Ultrastretch Neoprene is lightweight, with a tighter weave for less water absorption, more stretch, and maximum durability - Thermo Dry seam tape - Inner Nexskin seals - Glued and blindstitched seams - Duraflex knee panels - Back knee flex grooves - 4/3mm neoprene