New with tag, bought directly from Wunderwelt in 2020. The current listing on the Wunderwelt site is different from this piece I have, the sizing is smaller and there is a different item number on the tag. The measurements below are done by me, since the original listing is no longer up.

Length: 45cm
Waist: under 100cm 

I do have cats, but they are kept away from my closet.
Please feel free to send me a PM if you have any questions!