It's probably just the materials. Those styles were made for the Outlets and designed more as a summer bag / baby bag / beach tote than a handbag and meant to be easy to clean and water-resistant rather than fashionable which is why PVC is used for the body of the bag instead of leather. I have a checkbook-style multicase wallet from the same line and it does feel less expensive than the fabric and leather ones. But yours both look genuine and I haven't seen any evidence yet of that line being counterfeited.
Thank you!