Back in Stock! Nitrogen Polarized Sunglasses continues to gain popularity among the polarized enthusiasts. This particular style is for the medium sized head. It wraps nicely around the face so that your eyes are protected from the sun nicely. Its also a comfortable fitting style and looks fashionable with the metal Nitrogen logo on the temples. The polarized lenses are .7mm in thickness. It will cut the reflection of water, snow, and greens when you're out playing sports or just walking around. Be sure to order these for your customers and they will be happy you have them in stock!