Update 11/29/21 – after using these for about 6 months, I like them so much I ordered another pair just to put in a drawer to keep as a spare in case I ever lose or destroy the first.Original review:I've had a pair of Costa Ballast (grey lenses) for about a year, and although I really like them (very comfortable), when I wanted to pick up a second pair of good sunglasses (so I could leave them in the car all the time), I wanted something not quite so delicate, and the Turret looked to be exactly what I wanted (thin metal frame, and somewhat of a "wraparound" like the Ballast has). I like sunglasses to either be frameless or have a very thin frame, as some thick plastic frames obscure my vision when I turn to look when changing lanes.The Costa website said that the copper lenses were best for driving, and although I generally have always avoided color-tinted sunglasses, I decided to give them a shot. The seller, Great Lakes Outpost, shipped the sunglasses promptly, and I was happy that they arrived in time for a 3 hour trip for work that weekend. Though the copper lenses do warm up the view, I quickly became accustomed to it. During that drive I switched back and forth between these and the gray Ballast a few times, and found that indeed, the copper really improved the contrast and definition.One very minor issue is that the plastic of the temple tips are just a little sharp, and scrapes a bit when putting them on. But zero complaints about comfort, I wore them for hours with no discomfort to the ears or nose, as they are very light.