Onboard, train carriages have overhead luggage racks, space between the seats and a storage area in the entrance vestibules for larger items.  You may take up to three items of personal luggage free of charge, this includes two large items (such as a suitace or rucksack) and one item of smaller luggage (such as a briefcase).  Excess luggage and more bulky items (such as skis) may be carried, subject to available space, at an extra charge.  A seat can only be used for luggage if not not needed by another passenger.