The Warren is one of the largest Steven Alan Optical styles. It is best fitted for men with large oval or round faces. The Tribeca Tortoise Warren features an Italian 8MM acetate frame (almost twice as thick as typical sunglasses), rose gold plated pin hinges, and a two-rivet detail on the frame face. The Warren in Tribeca Tortoise includes emerald UV protective sunwear lenses. The Warren is not available as prescription sunglasses.