What a catch! This is the best fish you will ever reel in. This Bracelet is 316L Stainless Steel, a higher quality of stainless steel. The steel goes through a plating process that is known as PVD, Physical Vapor Deposition. Basically, the steel goes through a vacuum process in which the coloring is turned into a vapor and electronically charged INTO the metal. Meaning the color will not chip or change. It would also take excessive wear and tear to scratch off the coloring (Which is 3 microns deep) It is completely hypoallergenic, water and sweat resistant. There is no need to take our tuned bracelets off throughout the day or night, or even while you are fishing!