Large. I am large too. A friend of mine took a photo from me with Rex (3yo GSD) in my arms! I will post it when she gives me.

I have a friend who has a maltese, and I was showing her that I can carry my dog in my arms too, a police car was passing by at that moment and stoped, all cops began to laugh!

If I could I would have one of each size.

Rosana
and Rex