Just bought these goggles. Great field of vision, look awesome, but they didn't fit quite right. These could be great for someone else though.The strap is not very long, and the cinch in the back is bulky and doesn't fit well under a helmet clip. Also, with a helmet the nose piece got pushed down and blocked off my breathing through the nose. Overall, they don't seem to work with a helmet well.Without a helmet, they function much better. The short strap doesn't really matter unless your head is enormous, and there is less downward pressure on the nose piece.Bottom line, great goggles, unless you wear a helmet.