Difference in boot size between brands

[Trrmo]

I am having a ***** of a time finding boots or anyone that will ship to Ecuador for reasonable price and will accept paypal. But anyway, I believe for adidas boots US size 11 is about right. Would Puma/Nike/Lonsdale etc fit the same in size 11 or are some brands made slightly smaller/larger?
Would UK size 10 be the same as US size 11? I am looking at some barely used puma boots which are UK 10.
Thanks

[Trrmo]

anyone can help??

[BabyCAP]

Hey - hope this info might help. I'm a USA 9.5 in all Nike sneaker. I can get by with a 9 but they are snug. I wear Addidas USA 9.5 for my boxing shoes.

IMO Addidas and Nike sizes USA are the same. I thought the addidas 9.5 boxing shoes might be too big but they fit perfectly. Hope this might help