Garment bags are usually classified as a carry-on item and most fit in the bag sizer at your airline. Size regulations state that a horizontal rolling garment bag must not exceed 22 inches by 14 inches by 9 inches.
If you are traveling and would like or need your clothing to remain wrinkle free a garment bag may be the right option for you. Garment bags are ideal for the business or weekend traveler to store your daily necessities. Two different types of garment bags may be used as carry-on luggage, one with wheels and one without.
Most airlines allow you to carry on two pieces of luggage, however some only allow you to carry on one, so make sure to verify with your airline before you begin packing. Garment bags should fit easily under your seat or in the overhead bin.