Cruiser, dont go for the goggle type. I did first up, and it was a pain in the horse. Bloody things were the worst idea yet.

Fog up and all sorts of issues.
In the end I went prescription Polaroid

However going via the normal chain outlets wasn't good. In the end I was fed up with the malarky they dribbled, so went to a local shop that gave good service and knew what I wanted. Was a factor he was a surfer who used prescription as well.
Fitted the arms with a loop cord, that you drop over your head when putting them on, then one twist and back over the front. That way if they come off forward, or back they stay around neck.