The BLVD Sunglasses from Ashbury are a legit pair of sun cheaters that feature Carl Zeiss CR-39 lenses, and in case you aren't into camera or optical lenses you should know Carl is the king of optics.
Hand Crafted Acetate Frame
Lens Specs:Carl Zeiss CR-39 Lens100% UVA and UVB Protection
53mm x 22mm x 145mm [Lens Width x Bridge Width x Temple Length]
Stainless steel optical hinges