ok by that logic i wear a size 10 or 10.5 shoe in Nike but an 11 in DC. so is DC wrong? of course its not gonna be 100% exact for everyone. especially for skates cause people like theirs to be looser/tighter etc. there is preference. i could wear an 11 skate and it might feel fine on me but not on you, that doesnt make the chart wrong, its just a guide. its up to you to know how they fit before you order online. i have size 9 reebok ice skates that fit me just fine and size 10 mission inlines. no complaints.