4.3. But be sure to go easy on the laces as the holders can break if you pull them too hard/too often. Dumb design I know, but follow this and they'll last you a good time (75% of Barricades).
I love B7s btw, maybe you need to go up 1/2 size in them like I do.
Yonex E-Zone 100&Ai100. Tournagrip XXL. Adidas B7&B5.