A 100% waterproof Drybag 30 from EKO Motorwear.
Specifications:
-Waterproof Tail bag with roll closure
-Sturdy, easy to clean 500D Polyester with PVC coating
-Four attachment points with matching mounting straps
-Carrying strap
-Small inner pocket
-Waterproof and see-through front pocket
-40 cm wide x 26 cm deep x 28 cm high
-30L storage capacity