Ruffles have ridges. Questions or comments? 1-800-352-4477. Guaranteed fresh until printed date or this snack's on us. Mon-Fri 9:00am to 4:30pm CT / email or chat at fritolay.com. Gluten free. Visit our website at fritolay.com. Good fun! There's more where this came from. Find us on: facebook.com/ruffles.