The chemists are pretty decent combo of technology, style, and value. They have a very solid feel to them, nothing like my diesel's. The spring loaded hinges are a nice touch, it helps them stay closed when not in use. The lenses are amazing, very clear, since it's polarized it eliminates reflected light and gives a very uniform tint. Style wise, they kinda have that early 90s will smith / fresh price look them, without looking too much like rayban ripoffs.
Its also reassuring to know that smiths optics backs their products with a life time warranty. Though i doubt i'll ever have to claim it.