The size of the suitcases you need for travel depends not only on what you're carrying but how much you'll carry. If you plan to take just a few pieces of clothing, then a compact suitcase may suit your needs perfectly. However, if you're bringing along several days' worth of clothes, shoes, toiletries, books, etc., then you'll want something larger. As for Biggdesign, we grant you carry-on suitcase sets in a wide color selection and unique patterns that are resistant to wear and tear. Small carry-on luggage with 360° spinner wheels- 20 inch (55 cm * 32,5 cm * 22 cm): This versatile carry-on bag is designed to fit the overhead bin, so it's great for short trips where you don't have much to pack!