Sleek, comfortable, lightweight, sturdy, no fogging issues, well worth the $ and time will tell how durable these are.I've gotten plenty of compliments at my work on how these look and I highly recommend this product for anyone looking for a great pair of safety glasses.These glasses are fantastic for the price. I used to be an Oakley guy, but I lost several pairs and didn't want to spend a Benjamin again. The Lifts fit the bill perfectly! The Tortoise is really dark, and it looks cool. They are lightweight, and the fit is perfect. The polarizing is STRONG with this one, so you'll struggle to read the gas pump readout or your Droid while wearing these...just FYI. I highly recommend the Lift Safety Switch glasses!Tint is starting to separate by the nose on both lenses, and I haven't dropped them... but they are comfortable and work great for outdoor and indoor uses.Great productVery nice glasses. Delivered quickly.!