I got these in the blue/red/white Manny Pacquaio color scheme. I got them in size 10.5. I normally wear 10.5 in Nike's, like the AirMax, I have a pair of size 11 Nike Shox also but they have like 1/2 inch extra space at toe.
I read the reviews here and everyone said to get a size larger or whatever. I'm assuming they were basing it off the "size chart" listed on this website, which for me, when I measured my foot was about 265 mm, which I think was about size 9.5 based on the "size chart " on this website. So a size larger logic would hold up, since I got 10.5".
I have a regular foot, it's not wide (all my shoes are the 10.5 D for regular feet) I think. So I reckon' you can measure you're foot based on the size chart on this site and just got 1 size up OR if you already wear Nike Shoes, it should be similiar or exact to that size.
The 10.5 fits snug, almost tight, perfectly with my toes at the toe box, not pushing or jamming but just perfect like a sock, which I reckon' is the way you want it for a boxing shoe. I have a pair of TITLE boxing shoes in size 11 but there is about 1/2 inch at the toe box extra space and it's actually kind of annoying to feel that gap there when pivoting and jumping around.
I'm not a professional boxer and I haven't wore these shoes extensively enough to give a proper review or rating, so for now I will just give them 5 stars because they look incredibly sexy and the quality feels good (Much superior to my TITLE boxing shoes )