Made of lightweight German stainless steel, STEEL BROWN sunglasses are subtle, stylish, and minimal. Sunglasses are made for maximum comfort and are equipped with ZEISS lenses with an anti-reflecting coating to ensure ideal vision and provide glare protection. All STEEL BROWN sunglasses are FDA certified for impact resistance and confirmed to mitigate the effects of harmful UV rays. And as always, frames are designed to fit any face feature correctly. Enjoy the outdoors.