Which hard-sided wheeled backpacks have a sleek and stylish design for business or leisure travel?

This trolley case set is a partially hard, waterproof kids' rolling luggage design made from plastic with a nylon interior. It is intended for toddler boys and suits travel, shopping, business, school, and leisure use.

The High Sierra All Around Wheeled Backpack blends a roller-bag convenience with backpack-carry flexibility using a zip-away telescoping handle and tuck-away backpack straps. It includes a padded laptop sleeve for laptops up to 15.6 in and a zippered front stash pocket for quick access. With a 32 L volume, it's designed for travel, school, or commuting.

The Matein Wheeled Rolling Backpack is a spacious laptop backpack with a hideaway telescoping handle, lockable zippers, tuck-away straps, organizer pockets, and water-resistant construction. It suits business travelers, students, and leisure travelers who want a carry-on-style bag that can be rolled or carried as a backpack.

This wheeled backpack converts between backpack and rolling carry-on modes and offers 40L of packing capacity. Its ballistic nylon construction, expandable design, TSA lock, organized interior, and concealed backpack straps suit business travelers and flexible leisure trips.

The Travelpro Maxlite 5 Rolling Underseat Carry-On is a lightweight 26 L soft-sided bag designed to fit under most mainline airline seats. It includes a padded laptop or tablet sleeve, organized pockets, water- and stain-resistant polyester, and a rear strap for attaching it to larger luggage.