Help please! Sizing for Nike BFII and Air Zoom Trainer


New User
I'm currently wearing Barricade III US size 9 which is a tad too big - perhaps a quarter size.

Am looking to buy Nike Breathe Free II and Air Zoom Trainer from TW and because its hard to find here in Australia, I can't try this shoe on for size.

Any advice on sizing would be greatly appreciated, taking into account the Barricade III size 9 is a tad too big, should I go size US8.5 or 9 in BFII and AZT?

Barricade III 9 = BFII 9? BFII half size bigger or smaller?
Barricade II 9 = Air Zoom Trainer 9? AZT half size bigger or smaller?