Strength without the weight The Titanium 2.5F is machined from titanium into a 2.5mm flat-profile band. Light enough to forget you're wearing it, tough enough for daily wear. Hypoallergenic, corrosion-proof, finished in a clean technical grey. Engineered for Life The flat profile sits low and clean, with crisp squared edges and a modern line. Every ring is engraved inside with the F mark, F for Fahrenheit, a nod to the melting points behind the metal. It's how you know it's a genuine Atomic piece. Light on the Finger: A high strength-to-weight ratio you notice as soon as it's on. Wear It Anywhere: Corrosion-proof and hypoallergenic, fine in water and on sensitive skin. Machined Clean: Cut to tight tolerances for a precise finish. Specifications Feature Detail Material High-Grade Titanium Profile Precision Flat Width 2.5mm Finish Corrosion Resistant & Hypoallergenic Maker's Mark "F", engraved inside the band