I FOUND THESE VASQUE BREEZE GTX HIKING BOOTS A PERFECT FIT AT MY REGULAR SIZE OF 9 WIDE(2E). IF I HAD GONE ANOTHER SIZE UP AS SOME HAD SUGGESTED THEY WOULD HAVE BEEN TOO BIG.THE ONLY EXPLANATION I WOULD HAVE IF YOU WANTED TO WEAR EXTREMELY THICK SOCKS.I HAVE WALKED 10 MILES ON THEM SO FAR AS I JUST GOT THEM A COUPLE DAYS AGO.IF I GOT THE 9D THEY WOULD HAVE BEEN TOO NARROW. I SAW THESE AT ANOTHER SITE AND THEN WENT TO AMAZON AND GOT THEM FOR HALF THE COST WITH FREE SHIP. I AM GOING TO MOST OF THE MAJOR NATIONAL PARKS THIS SUMMER SO THEY WILL GET ALOT OF USE.