Excellent
I measure a pair of sports glasses I run with on three measures; effectiveness, quality and looks. The RIA glasses are stunning to look at - I chose a blue frame. The quality from the packaging onwards is of a high level. I have been running with them daily as well as hiking, I have found them to be lightweight, effective at shielding my eyes and comfortable. In addition I have had no steaming up issues.
I can thoroughly recommend RIA Eyewear glasses.