Polypropylene plastic stands as the lightest suitcase option on the market. Crafted from a robust yet lightweight thermoplastic polymer, these suitcases boast top-quality materials for lasting durability, making them effortlessly portable. Equipped with four premium spinner wheels, they ensure a smooth and stress-free travel experience. Plus, a 3-digit TSA lock with a resettable code offers secure travel to any destination without the need for keys. With an expandable capacity of up to 20% across all three sizes, you can carry more essentials comfortably.