Considered the little brother to the Costa Rincon, the Rinconcito has the exact same features as its older brother. Constructed with spring hinges, hydrolite along the nose and temple tips, and a tough bio-based nylon material, the Rinconcito is built to last. It is considered more of an M fit and with its West Coast styled 580 lenses youll always have maximum clarity. Get your prescription Costa Rinconcito sunglasses from SportRx today!