From RAEN: These slight cat-eye sunglasses give off a certain something. They're slightly oversized and yet lightweight, the essential answer to everything. Brindle Tortoise frame handmade from zyl acetate. Green Polarized CR-39 lenses manufactured by Carl Zeiss Vision. Featuring 100% UVA/UVB protection and 6 base curve. These are handmade, cute, flattering, and incredible quality. I have another pair of sunglasses that I reach for all the time, and want to pass these along to someone else. They were worn during one summer and in like-new condition.