Rectangular frames made from organic and biodegradable acetate. Japanese stainless steel hinges and coated screws ensure premium quality for lifelong wear. Unisex design and ideal for most face shapes and sizes. 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. Anti-scratch and anti-reflective treatment with 100% UVA/UVB protection.