Hello all, wonder wether you can help.

Ive been looking at bivvybacks for quite a while, and found some with wired peaks after years of looking. Now this was a fault on my part, as im sure i have seen some before, some i think are new.

So far I have found the black diamond big wall


The exped event bivvy


And the ac bivvy from MSR


Firstly do you know of any other similar bivvys with wired peaks, and seconly what are your thoughts on the ones listed above please.