Product information If you are new to open water racing, we've got you covered! Our women's Powerskin Thunder wetsuit is designed to provide the best mix of buoyancy, flexibility, thermal protection and comfort. Equipped with all the essentials, it is made entirely from high-quality and durable Yamamoto limestone neoprene, a durable, lightweight and high-performance material. The distribution of neoprene density minimizes resistance during the stroke and provides buoyancy in all the right areas for an optimal body position and greater freedom of movement. Advanced design features include a no-chafe collar that's soft against skin for reduced friction, bottom-up zipper easy to use and double-blind stitched seams that are 100% waterproof. Approved by FINA, World Triathlon (ITU), Ironman, & USAT.