I would say they are pretty much bang on. I'm a 5.5/39 and bought that size and they fitted, that was the glaciers. I've just bought grasmere's in a sz 6 (all they had left and money was burning a hole in my pocket!) and they fit just as well. Sz 5's don't touch me though and retailers advise going 1/2 sz up in Ariats.
I was recommended them on here and went half a size smaller (got 5.5 when I'm always a size 6) - they fit perfectly, I think any bigger would be too much
i sell grasmeres and tend to find they come up big, we say go down 1/2 a size generally. In all my ariats that i wear ive gone down a whole size but 1/2 a size is more normal.
Sorry to resurrect an old thread but what's the consensus on the calf width? I know they do a reg and a full, but they are lace up so any thoughts as I'm looking at buying a pair. I'm a 16 and a half inch calf.
Also, up or down or exact on sizing? There are too many differing responses so far to help me make an evaluation. Thanks