Keep your personality and the fashion of your wedding rings with this silicone ring to wear when you're at the gym or want to protect your actual heirlooms. Groove Life has a lifetime warranty and their rings are built to last. The grooves on the inside are for breathability and comfort when when you're living in these rings. Engineered to keep air in and moisture out, you can't go wrong with this ring. The medical grade silicone keeps your ring flexible while maintaining a durability that other silicone rings can't compete with.