These glasses are part of the Kittles x Zenni collection. One of 49er George Kittle and his family's favorite hobbies is traveling hence the name of these iconic round glasses. This style is made from glossy hand-polished acetate and works well as both glasses or sunglasses. For ultimate comfort the lightwight look is fitted with spring hinges. It is available in the following colors: ivory tortoiseshell or clear. | Zenni Square Prescription Glasses Pattern Tortoiseshell Plastic Full Rim Frame