Hard-sided luggage in 2026 is typically manufactured from one of three primary high-tech materials: Polycarbonate, Polypropylene, or ABS (Acrylonitrile Butadiene Styrene) plastic. Polycarbonate is the most popular choice for high-end suitcases like Away or Rimowa because it is incredibly lightweight yet flexible; it "flexes" under pressure and pops back into shape rather than cracking. Polypropylene is often considered the most durable and temperature-resistant material, frequently used for "clamshell" bags that close with latches instead of zippers. ABS is the most budget-friendly option; it is very rigid and lightweight but can be more prone to cracking under extreme impact compared to polycarbonate. For ultimate luxury and durability, some bags are made from Aluminum, which offers unparalleled security and protection for fragile items, though it is significantly heavier and prone to denting. The choice of material often determines the suitcase's longevity; while hard luggage provides superior protection against the elements and rough baggage handling, it lacks the external pockets found on soft-sided ballistic nylon bags.