Polycarbonate is more flexible than ABS and has a higher impact resistance. As a result, it makes for a stronger suitcase. ABS suitcases are cheaper than Polycarbonate ones, but they are often heavier and do not last as long.

When choosing between ABS and polycarbonate for hard-shell luggage, polycarbonate is generally considered the superior material for durability and long-term value. While ABS (Acrylonitrile Butadiene Styrene) is cheaper and lighter, it is a more rigid and brittle plastic; under the heavy impact of a baggage handler's toss or a sub-zero cargo hold, an ABS suitcase is much more likely to crack or shatter. In contrast, polycarbonate is a high-performance thermoplastic that is designed to be "impact-resistant." It has a natural flexibility that allows the shell to "flex" or dent under pressure and then pop back into its original shape without cracking. In 2026, many frequent flyers view ABS as "entry-level" luggage suitable for occasional road trips, while polycarbonate is the "workhorse" for international air travel. While a 100% polycarbonate suitcase will cost more upfront, it typically lasts much longer, making it a better investment for anyone who flies more than once or twice a year. If you are looking for a middle ground, some brands offer "polycarbonate-composite" shells which mix the two materials to balance cost and strength.