I will admit when I first put these on, minus a helmet, I thought no way, they just didn't look good on my head. I put them on with a helmet to go for a ride and voila they looked great, and I wasn't even wearing a poc helmet. The shape in use with gear just seemed to take on a whole new look. ok so they look good, that really not the most important part. I wear contacts and want to keep anything out of my eyes, my eyes get dry so I want to protect them that way, oh and I don't wan't to sweat to much. I want a lot. Happy to say they are keepers and have been riding them for the last month very happily. I would say they are a med/larger size glass, which although I have a smaller head (I wear a size S helmet) is what I prefer for protection both sun and debris. Sometimes larger glasses can look goofy but these are size really well.