Are these Goggles good for going over...
Are these Goggles good for going over glasses?
if it doesn't say OTG (over the glasses) the answer is no it's not good.
Even if it fits, your glasses will likely be contacting the edges of the goggles, and your glasses will likely fog up without the extra volume of OTG goggles.
The I/O is definately OTG or glasses compatable. I've tried the I/O on with my glasses just for kicks and giggles and they fit just fine. I would suggest going into a retail shop with your glasses and trying them on with the I/Os before you order the I/Os because it definately is a smaller fit than the I/O.