Monokel Eyewear is a sustainable unisex sunglass label based in Stockholm, Sweden. The main material in their frames is a premium plant based acetate, and all black frames are made with recycled acetate. The lenses are made by Carl Zeiss Vision®. Each frame is handcrafted with tremendous attention to detail in a process taking well over three months. - 100% UV protection. - Stainless Steel Hinges and frame. - Leather/metal case and cardboard box included. - Unisex fit.