Firstly, the new XB950N1 is a fully folding headphone with rotating ear cans. The cans are bulky due to the large pads so they don’t fold super compact like say a pair of Bose QC35 or Sony’s own MDR-1000X, but it’s nice that they’ll fold up and fit nicely in the front pocket of your backpack.
https://www.amazon.com/Sony-XB950N1-Wireless-Canceling-Headphones/dp/B01MUGEYT7

