Let adventure tempt the senses and give in to the allure of a hybrid frame that can't be phased. The Allure comes with the SPY Happy Lens, the only color and contrast enhancing lens technology that maximizes the transmission of the sun's "good" rays--while still blocking out its "bad" rays--which studies suggest fosters an uplift in mood and alertness. Crafted from virtually indestructible Grilamid® 8-base polycarbonate ARC® lenses 100% UV protection. It features pin hinges, Hytrel rubber nose pads and temple tips. Small opening at end of each temple for easy leash attachment.