I would say that if you were on the fence with the 1s, then I would think about going up a half size. I don't think its a big enough difference to make a blanket statement that everyone should go up a half size.
So I've received and done a WOD in both pairs of my new Metcon 2s and thought I would share some things. First, both new versions feel great. The added heel pad make them feel and fit more secure. The AMP Metcons are definitely more snug than the regular 2s. The regular 2s fit exactly like the...