It takes 65 steps to make these almost perfect sunglasses. They[re crafted by hand from Italian cellulose acetate, a durable and handsome material intended for a lifetime of use. It's held together using five-barrel German hinges cut from stainless steel. The lenses are the premium CR39 variety, successfully blocking out UVB and UVA rays, helping to protect your peepers from daily abuse. Keep the glasses clean and ready for travel thanks to the included cloth and case.