This is the Henderson Men's 3mm Thermoprene PRO Back Zip Shorty Wetsuit Features: High Quality Nylon 2 Neoprene 250% Stretch Neoprene Significant Improvement Over 180% Stretch of Original More-Stretch than Standard Wetsuit Material Double-Glued & Blind Stitched Seams Adjustable Collar Fantastic Value, Thermoprene Ideal for Budget-Minded Divers Contoured Fit: Helps Keep Water Exchange to Minimum 10-YKK Back Zipper with Zipper Tab Leash Zipper Tab Leash: Easy Self Donning and Doffing Lycra Trimmed Cuffs The Thermoprene Pro the next generation of Henderson's ultra-popular Thermoprene wetsuit line that delivers quality and performance a step above the rest. A fantastic value, Thermoprene is ideal for budget-minded divers who want the best in materials, design and construction. Significant improvements in comfort and flexibility will be one of the most noticeable enhancements found in the new Thermoprene Pro line. Thermoprene is crafted from a high quality neoprene that has 250% stretch a significant improvement over the 180% stretch of the original Thermoprene. The new material melts in your hands and contours every curve of your body. "