This is the 2014 model that is sold by Six Moon for $100 (the current model sells for $230). It has a medium belt and regular yoke. I bought this new from SMD three weeks ago, still has the tags on it, and is in pristine condition, carried four miles. Beautiful pack in a green and white color combination. Selling for $90 shipped CONUS.
More specs: http://www.sixmoondesigns.com/packs/F50-CU.html