These men's Oxigen semi-rimless shield aviator glasses provide the wearer with the ultimate level of protection. Other types of shades leave the wearer vulnerable to the sunlight that might leak in between the lenses. When sunglasses have a lens that's a single piece, this problem is eliminated. The way these shades are designed makes them likely to last for many years to come. That's exactly what you will want to have when you wear sunglasses like these. Although the tint of the shades is lighter than you might expect, you will still get the maximum level of protection.