The best safety glasses I have ever used. It is a very high-quality product that is worth every penny. The price is a bit steep, it's true, but it pays off in its use. Very lightweight frame that doesn't tire you at all throughout the day. The lenses are equally high-quality and do not strain the eyes. They perform exceptionally well in very strong sunlight or intense glare, without darkening the surrounding area and maintaining perfect contact with the environment. The lenses appear quite transparent, which was my initial concern, fearing they might not be effective in the sun. But as I already mentioned, they are highly effective in any sunlight conditions. The frame is very durable. The only downside is that the lenses scratch easily. Within an 8-month period of daily use in a harsh working environment, they acquired many scratches that affected my vision. In conclusion, it is a long-lasting pair of glasses for about half a year, depending on the working environment.