Our Chlorine Proof Instructor Rashies are built for durabilty and comfort while teaching in the pool. Made in a unisex relaxed fit, to make it easy for teachers to get into a size that suits. We use Atlantis chlorine proof fabric that is enhanced with Xlance technology which allows for a soft hand feel, additional stretch compared to other chlorine proof fabrics, and extended durability when exposed to harsh chemicals like Chlorine.