The Aquaman DNA wetsuit is made entirely from Yamamoto #39. The neck is covered with neoprene, eliminating any possible friction with the skin and materials from the high range of Aquaman have been used to provide greater flexibility in the shoulder area giving greater mobility in that area.Features:- Neoprene manufactured entirely from Yamamoto #39, using the SCS manufacturing process, except in the area of knees and back- The zipper closing system is from top to bottom, something very useful in the transition stage to remove the neoprene quickly. In addition, it features the Flexible Zip technology, improving the comfort of the zipper in both neck and back.- The neck is covered with neoprene to eliminate any possible friction with the skin.- Aquaman's top-of-the-range materials have been used to provide greater flexibility in the shoulder area.