I work as a paramedic in a busy area, have had some interesting fluids sprayed in my face and I'm picky about my shades and safety glasses. These stay in place on my weird shaped head, are comfortable, look better than any others I've tried, and get the job done. A lot of the firefighters wear them too. They buy em in bulk and put them in the airway bag.
For real, these rock.
Ive tried many others.
Lost mine so im about to buy a few more pairs.