davos07, I have large boots and a 10.5 foot...and that's the right size for my foot.
Let me start by saying I totally love the feel of the Zs on my feet. But Joe's right, I also had the loops rip on my too. The footbed is so soft that I couldn't hardly get them tight enough while on the boat...without ripping the loops. As soon as I started riding, they'd feel loose again. I usually like the tops somewhat loose but my foot never really felt secure unless I cranked both top and bottom.
My solution: Modify...
I removed the Z's static ankle strap and replaced it with the Hyperlite
Option 2 adjustable strap.
(I actually had the guys at Cope / Ult watersprts do the mod)
Now the boots are easier to get on and off, I can even make adjustments to the Option 2 strap while riding and...I haven't ripped any loops since. After the mod, I couldn't be happier.
Works perfect and I totally recommend it!