The frame comes with demonstration lenses that feature an inked logo. It can be equipped with prescription lenses at nearly all optical retailers. This design offers a comfortable fit and complements different facial structures. The eyeglasses are constructed from durable, corrosion-resistant metal. They include spring hinges for added flexibility. The spring hinge temples help to maintain the fit of your glasses, ensuring they stay secure and retain their shape. An original case is provided with the purchase.