Wheels on a suitcase? So convenient, they're an unremarkable essential for today's traveler. But in 1970, Bernard Sadow had trouble selling his rolling suitcase idea.

Check out the Level8 Hard-Shell Carry-On, a stylish and durable suitcase at a more accessible price. With scuff-resistant material, quiet spinner wheels and a waterproof shell, this 40L carry-on ...