Gave in and bought a Givi box today. Been stuck in the rain one too many times. Went for at least 2 meetings drenched wet. So during my 3,000 km service, installed a Givi bracket and E33 box. Bought a substantially better Givi raincoat and paid RM508 for the entire bill :`(
I was afraid it was going to look ugly, but it doesn't look THAT ugly. Just reasonably bad. Its not a huge box, and only fits one full face. But it will store my raincoat, water + gel, rain slippers/shoes.