Help!!!!

Alright, so I recently copped this Bulls fitted from myfitteds.com.
I normally wear 7 1/4 or 7 1/8.
I ordered 7 1/8, but it fit a lot tighter.
Any ideas why? Maybe because it's a hardwood classic?

Here's the link:
myfitteds.com/cbuajwhmafi.html


Thanks in advance. Any help would be appreciated