Rrruffles have ridges. Guaranteed fresh until printed date. Guaranteed fresh until printed date or this snack's on us. Questions or comments? Weekdays 9:00 am to 4:30 pm CT 1-800-352-4477 / email or chat at fritolay.com. Gluten free. Visit our website at fritolay.com. Facebook: Find us on: facebook.com/ruffles.