The waterproof GIVI inner bag is designed specifically for the TREKKER OUTBACK (OBK48), offering a spacious 45-liter capacity. This versatile bag can also be used as a tail bag or even attached to the top of the case. It comes with elastic straps for secure attachment, and it is compatible with the S350 TREKKER straps (not included). Constructed for durability and convenience, this inner bag is an essential accessory for motorcyclists who need reliable and waterproof storage options for their gear.