clean lines meet understated sophistication. the sharp rectangular frames are crafted by hand from organic- and biodegradable acetate, while the stainless steel hinges and coated screws ensure premium quality for long term wear. medium wide, but vertically slim. suitable for most face shapes and sizes. black. the essence of timelessness. monokel makes their black colourway by mixing black ink with raw biodegradable cellulose acetate. cellulose is the most common organic compound on planet earth. they use cotton and wood pulp due to their inherently high percentages of cellulose, and their small carbon footprint as compared to similar synthetic fibres. the result is a highly durable, hypoallergenic material, made from renewable resources. aviator pilots of the 1930s are often credited with making green lenses popular, choosing to wear them due to their ability to work in both sunny and low-light environments while reducing glare and brightening shadows. all of monokel's lenses feature anti-scratch and anti-reflective treatment with 100% uva/uvb protection. made by renowned german lens- and optics manufacturer carl zeiss. frame width: 136.5mm | frame height: 43.5mm | lens width: 46.5mm | nose width: 22mm | temple length: 145mm - handcrafted from organic- and biodegradable acetate - 100% uv protective carl zeiss vision cr39 lenses - 5-barrel obe stainless steel hinges - teflon covered hinge screws - saddle nosebridge - double stainless steel rivets on temples and front - includes protective case, cleaning cloth and box for storage Memphis Sunglasses - Black