Yes, nylon is widely considered one of the best materials for soft-sided luggage due to its exceptional strength-to-weight ratio and durability. Most high-end luggage brands use Ballistic Nylon or Cordura Nylon. Ballistic nylon was originally developed for military flak jackets; it is incredibly resistant to punctures, tears, and abrasions, making it ideal for checked bags that take a beating from airport handlers. Nylon is also naturally water-resistant and much easier to clean than polyester or canvas. While it is more expensive than polyester (which is often used in budget luggage), nylon's ability to maintain its shape and resist "pilling" or fraying ensures the bag lasts for decades. The only downside is that it can be heavier than some modern hardshell polycarbonates, but for travelers who prefer the flexibility of external pockets and "stuffability," nylon remains the premium industry standard.