Lens width: 52 mm

It's made from the straw byproducts from regular wheat harvests

Pared down of all excess

If you love full frame sport sunglasses

Silverton Power:3.25 Lens width: 52 mmElegant black frames with brown temples and silver accents bring the Silverton men's readers to another level of sophistication. Travel ready with a tan case. Made of lightweight polycarbonate, with scratch proof acrylic lenses, Piranha Optics readers come in a wide range of diopters that will suit almost everyone. Details: High quality materials used in manufacturing Quality control inspection of all glasses Crystal clear acrylic lenses Lead free