These Oxigen-brand rectangular-lens plastic sports men's glasses have frames that will give you the peace of mind knowing that their sunglasses are capable of standing the test of time. Buying sunglasses is a difficult process because you don't know how long each pair of glasses will last. We all go into the world of sunglass ownership with good intentions. We want to take care of our shades, but things happen during the course of our daily lives. With these sunglasses, we can rest easy knowing that our glasses will last much longer than sunglasses from most of the other brands.