Built to last, the Costa Ocean Ridge 310 eyeglasses provide a clear view for all of life's adventures. These sports frames consist of heavy-duty bio-resin nylon material that's lightweight, highly durable, and maintains its shape in temperature extremes. Wire-core temples provide additional strength and flexibility, holding adjustments in place for the ideal fit. The full-rim frames feature rectangular rims that complement oval, round, square, and heart-shaped faces. Hydrolite nose pads and covered temple tips increase grip for a secure hold while cushioning contact points for relief. Count on the durability and comfort of these rectangle-shape eyeglasses.