The metal frame contains nickel due to production process. Customers with a history of nickel allergy should be cautious when purchasing.
This unisex semi-rimless frame is made of metal alloy with a proper size for bifocal/progressive lenses. The total weight is only is 22 grams with basic lenses. All most squared lenses have modified edges. That is the reason why it is suitable for both men and women. The plastic covered arm tips working with cushy nose pads allow super comfort to wear these durable glasses.
Also see: aviator eyeglass frames,round spectacles