Which strap to make pochette into a crossbody

No problem - please excuse the sweater, just hanging around the house!

6aefd28f1159c2ed2af3e697aef9766a_zpsd1fdcf96.jpg

d06c42cdeca7dfc75d29fb5d0814a30d_zpsffd48027.jpg

This looks so pretty.
 
I use a chain on mine. I have them in a few different lengths from the ebay seller rebirthday. There are quite a few pics in the pochette club, and this is where I got the recommendation for the chains from.
Good luck! Show us what you decide on.