The PiWear PR2 sunglasses are perfectly round and handmade in Italy, and with high quality Mazzuchelli acetate. The round shape has a wider bridge widlth that the 2Pir frames, so this is a great frame for wider faces. The lenses all have backside anti-reflective coating. Like all PiWear eyeglasses and sunglasses, when you buy a pair, you make a blind person see - literally.
This frame can also be use for eyeglasses with clear prescription lenses.