Not wanting to spend $600+ on prescription riding glasses, I tried several other styles that claimed to fit over prescription glasses. These do. They're very comfortable. It takes a little bit to get used to the change in peripheral vision (i.e. looking down at speedometer, turning to double check blind spots--easier in slimmer goggles, but those don't fit over my glasses-I'm not blind, don't require glasses for driving, but they definitely help).The elastic strap is wide and fully adjustable, sSee full review