Quote Originally Posted by oldfrat View Post
In my experience, it seems to vary by brand. Pick a brand, check out if their website gives any advice on this, e-mai them if it doesn't.

My favorite boots to date are Korkers. They are very responsive to e-mails like this.
Excellent point, as they do vary. Once you pick a brand also post on several boards to get feedback from others who have actually purchased the same brand.

Dave