The Synergy EpicSpeed Vest has advanced high-performance 4mm front body panel and 3mm back body panels made from high-quality SyPrene smoothskin neoprene. The low neck is made from self sealing 1.5mm Dual-Smoothskin. Low and short zipper and lanyard on the low back for easy entry and exit the EpicSpeed Vest provides exceptional comfort and functionality. Our 4-way stretch Nylon Lycra® soft liner provides for  maximum flexibility and minimizes chaffing.