You are correct that the Anniversary sale will be online only. We hope you have been able to check out the sale catalog! As we responded to your post (thanks again for catching that!) earlier this morning:
'As we roll out curbside, it will not be possible to try items on for fit. We hope that our virtual outfitting service can help with fit while we work to reopen stores more fully.'
We recommend setting up a virtual outfitting appointment with one of our product experts in order to talk through specific backpack fit considerations with you. As we have stated before, we have gotten really positive feedback from our customers who have participated in these outfitting sessions.