My new armbinder has a lockable zipper

Such things are not intended to be used alone. They are meant for assisted bondage, not for unassisted self-bondage 😁

I know, but I did manage to get into it and it was all fine nice and tight but then when moving around a bit a seem started ripping and then the zipper gave way and ripped. So what I'm trying to say is I didn't break it doing self-bondage specific things, it would have broken if somebody would have helped me get into it too.

[Like Ra]

hen when moving around a bit a seem started ripping and then the zipper gave way and ripped.

Yeah, that's a different story, indeed 😟

I tore my single-glove strap while trying to get in. And that was clearly my fault.