I bought these glasses to protect my eyes while cycling, and they work great, as well as being infinitely less expensive than my $150 Panoptix. Because there are rubber seals around the frames to keep air and road debris from blowing into my eyes - they also serve to keep other indoor airborne contaminants from coming in contact with my eyes . . . And that is helpful during Covid-19, especially when used in conjunction with a mask. My only complaint is the fact the frames are a tad too large for my head, and they come in contact with my helmet, which applies added pressure to the area above my ears. I wish the company sold a smaller version more suitable for women.