These shoes are, without a doubt, the most comfortable shoes I own. The other reviewers have mentioned they run a little large and for me it was true. Have ordered size 46 in Ecco's in the past and that's the size I ordered for this pair. I had to return them for a size 45, but thanks to Amazon's return policy, it wasn't a big deal. Definitely buy this shoe if you spend any time at all on your feet - they'll be happier if you do.