Yes, hard-sided luggage can definitely dent, but the extent depends heavily on the material: Polycarbonate, Polypropylene, or Aluminum. Polycarbonate is the most popular in 2026 because it is "resilient"—it is designed to flex under pressure, meaning many "dents" can actually be popped back out from the inside without leaving a permanent mark. Polypropylene is even more flexible but slightly less durable. However, Aluminum luggage (like the iconic Rimowa cases) is famous for denting permanently; enthusiasts actually consider these dents a "badge of honor" that tells the story of their travels. On the other end of the spectrum, cheaper hard shells made from ABS plastic are the most prone to cracking or shattering rather than denting, as the material is more brittle. To minimize damage, many frequent travelers choose "textured" shells that hide scuffs and minor indentations better than high-gloss finishes, which show every impact from the airport's automated baggage handling systems.