QR Code Link to This Post FACO's thunder case bag is a great alternative to big top cases. Made of water-resistant material, the bag is either strapped to the seat or mounted to the luggage carrier with a baseplate. An integrated rain cover keeps your luggage dry and the zipper lock protects it against theft.I bought this but it is a little too long for my bike. Beautiful bag, came from Europe! Absolutely unused. Comes with mounting hardware. Will fit most bikes & scooters.