Groove's Thin Solid Colored ring is is also available in unique, swirled metallic colors. Brighten up life with our new Ocean metallic ring and go hike or head to the beach in style. Our one of a kind grooves allow breathability and comfort like you've never seen before with a silicone ring. Designed to keep air in, and moisture out, you can't go wrong with this ring. The medical grade silicone ensures that your ring will remain flexible and comfortable no matter what it goes through.