Melanie S.wrote a review of Dragon X2 Goggles on May 10, 2017
Familiarity: I've used it several times
Picked these up to try for the season after using my Smith I/O7s for the last 3 years.
This is a larger goggle, but it still maintained compatibility with my Bern Watts helmet. The range of vision is superior in every direction than the IO7s, with the design around the cheek bone/nose accommodating more downhill sight. For people with smaller faces or helmets, the X2S (smaller frame) will be optimal over these larger frames.
I like the strap tightening system on the Dragon's over the Smith's as well. The IO7s had a center locking strap that met the back of the helmet's strap-guide. The X2 on the other hand uses two tightening buckles that do not interfere with the helmet strap guide.
The real advantage of these over the IO7s is Dragon's lens changing system. It employs two levers on each side of the frame to lock/unlock the lenses, which immediately pop out and back in, a quick lock of the levers and the lens is in place. Estimated time to change a lens while still wearing the goggles = 5 seconds. It's akin to the Anon's magnetic system in terms of speed, and in my opinion, is much more secure.