What about this one "https://www.vikingbags.com/cruise-co...-1452-prd1.htm". One of our group riders has been using this for two years. It has a 1220 cubic inches capacity to carry all the basic stuff including helmet and electronics. I had done a solo trip with that and It helped me a lot to carry all my stuff in a single place. Yeah, the upper shield is not waterproof but the rain cover had done its job well!