I don't know what Clarks does such that one shoe I can hardly stuff my foot into and another shoe of the same size but a different style have such a huge difference in fit.  I think they must contract out their shoe construction to different factories and each factory has their own standards for what a size 12 wide means.  This shoe feels clunky, the toe box is cavernous, and the soft sole feels like Im walking on squishy rubber balls. Not a comfy shoe. Fit is large and sloppy.