A large suitcase is a good choice if you're going away for 2 to 3 weeks. The trolley suitcases are around 75cm high and have a capacity between 80 and 109L. This allows you to take 15 to 20kg of luggage. Large suitcases are available in hard or soft material. Most hard shell suitcases are made of sturdy polypropylene. Some L suitcases are made of curv. This material is the most sturdy and weighs the least. With an expandable suitcase, you always have space for souvenirs or extra clothes. Travelling with your partner or family? Choose a useful suitcase set.