Bikepacking - a viable alternative to racks & panniers

interesting, any idea what size the bag in the pic is? looks bigger than 13, but the no padding might be misleading

** edit just realised your pic isnt the same drybag, nvm

post pics if you get a chance!

I've got one of the double-opening 13L Alpkit dry bags and a couple of the 8L Airlock Xtras if you want borrow them and experiment with attaching things to your bike