During my time as a lifeguard, I had obtained some Raybans and I loved the polarised green lens, but I wouldn’t dare use them during lifeguard duty because they were too valuable. So I got these. The lenses are polycarbonate but that just makes them more durable and they served me well as I watched water and exposed them to drops and chlorine.I have small nose bridge and it would have work fine except it was the wrong color lens.Por el precio esta bienOnly suitable for thin body type as it doesn't fit broad nose.Too big, I look like I’m wearing glasses for a giant! Wish I could return them.