Do you know the approximate dimensions of your bag? Is it larger than the "pebble turnlock tie Dakota crossbody" that LizCordova just revealed? (12.25 x 8.25). And apologies if this is mentioned already and I missed it! Just looked through this thread and the fall preview thread to see.
Thanks so much!
I measured it for you.

Its about 13 1/2 to 13 3/4 inches long and just under 11 inches high. So it's bigger than the pebble turnlock tie Dakota crossbody.