I have loved this bag forever. I turned down the black box clutch version a couple of years ago because I simply don't use clutches. It hurt to do so! I remember that it also had that strange lift that you are talking about. At the time I thought if it had a strap, I would have bought it in a heartbeat. I can't wait to try this when it comes to my store but the epsom is leaving me cold, I'm thinking it will keep me from purchasing once again. Box, chèvre, swift or ever color would be a winner for me.
Can someone please show a picture of the 21 cross body and post the length of the strap?