Question: what is the difference between polypropylene and polycarbonate luggage?
Answer: If you travel often and you need a reliable suitcase, a polycarbonate one will do the job for you. Polypropylene is the lightest of all the materials. It is flexible as well, so it will give extra protection to your belongings. It is not as flexible as polycarbonate, but is still better than ABS and PVC.