I use these all the time playing tennis. They don't fog up at all, which is hard to find, they don't slip. Perfect glasses. I was going to invest in Oakley's, they literally have the same pair of glasses for several hundred dollars. Saw theses and thought, for the price, Id check them out. Wow, was I surprised. People always ask me where I got them from. They are as surprised as I was! Great buy and my new favorite!Would purchase again.Usually wear Ironman running glasses but they recently broke and can’t afford the price again so I was skeptical and nervous to try cheaper options but finally but the bullet and loved these! I have the white with pink lens. I also love the additional lenses the pack comes with! For running, you really want a pair that won’t bounce or fall off and these glasses definitely stayed in place! Highly recommending to everyone!I bought these sunglasses to be used mostly for running as my other pair had been fogging up. These Torege TR27 sunglasses are great! I did a 50K run on Oct 25th with no fog or water residue. In the morning part of the run the weather was misting/foggy and the sunglasses were sitting on my cap. Not once did they fall off my head during the run which is a big deal! Also, once I put the Torege TR27 sunglasses on my face for superior eye protection I realized I didn't have to wipe them off because the water never settled on the lens, baller! The air vents on the nose guard kept the sunglasses from fogging up, nice!All-in-all, I love these sunglasses for the price, quality of lens, quality of flexibility, color choices and durability! Highly recommend Torege TR27 Sunglasses.You won't mistake the feel of these in your hand for a high-quality set of Natives, Smiths or Oakleys, but once you put them on you won't notice that anymore. They look good enough. The lens color is excellent, polarization works as advertised.They've stood up to some hits and resist scratching as well as the name brands. The only draw back like I said earlier is that they feel a little cheap when you have them in your hands.These glasses are really cool. They have a very up front and in your face look. They are bold. Pretty big frames. They squeeze your head so that they will never fall off. They might be a tiny bit too tight on the side of my head. They sit on the nose really well. I have the Brown lenses and they are a really nice color. They almost brighten the light coming in, but they make it a much more comfortable color. I really like these, but I wish the case was a little more small. Over all great glasses. Especially for the price.These glasses surpassed my expectations as a low cost alternative to high end glasses. I own both cost levels and always like to ware less expensive glasses when outdoors or working. Again these fit the bill. They have Decent polarization, the lens coating is good, and they are quite sturdy. I would rate five 5 stars, however the fit is a little large on my face. This is just personal preference and hard to judge with out trying on. I would definitely recommend brand and will be trying other styles if they last.These glasses are close to the best glasses I have owned. I have owned/own name brand glasses and these are comparable.