During vacations and longer trips, you often need more storage space than your own car can provide. A good solution for this problem are roof boxes such as the Thule Motion, Hapro Traxer or the Kamei 510.
For your own luggage box, however, you quickly pay upwards of CHF 300, whereby the price of course always depends on the size and brand of the roof box. Since such a jetbag is not used permanently, it is often not worthwhile to buy one's own. It is much easier and cheaper to rent a luggage box and the corresponding roof racks. At Sharely, you can find such boxes and carriers in a combined package starting at CHF 5.- per day.