Great pair of shades, love the shape of the lenses. Durable as just about anything, even lost them momentarily in a river while tubing and they came out looking grand. One issue though, the frame is tight on the lenses when not worn, but when I put them on, the slight tension on the side arms of the frames opens the frame around the lenses on one side just a tad. Not so much as the lense could fall out, just a bit. I only notice it when adjusting the glasses on my face, as I can squeese the frame tight around the lense and it makes a little popping noise.