Having purchased one of the early S1’s, (February 2018, battery not included), like others, I was offered the goodwill gesture of a free backpack.
I must confess I had given up hope of ever actually receiving it but low and behold, it turned up today!!
Like all Bose products, well made, practical, and perfect for transporting a single S1 (I now have two) to small intimate gigs.
THANK YOU BOSE!