Ordered these for my husband to replace a similar pair he had for over two years.  He's tough on his boots and wears them often.  Wanted to replace them with the same ones, but saw that these were insulated for warmth.  His true size is 12, but he couldn't even get his foot in them.  Exchanged for a size 14.  He loves them!!!  Very comfortable and warm, with some wiggle room for extra heavy socks in the extreme cold.  Exchange was very simple.  The boots were picked up from my home the day after I registered the return, and the new ones were delivered the following day.  Easy!