Doritos Brand Salsa Rio Tortilla Chips. Limited edition! Guaranteed fresh until printed date. Frito Lay. Flavored tortilla chips. Try the creamy flavor of sour cream and onion. Limited edition! Doritos brand, tortilla chips, sour cream & onion, Frito Lay, flavored tortilla chips. They taste as good as they crunch. www.doritos.com. Guaranteed fresh until printed date or this snack's on us. Questions or comments 1-800-352-4477 weekdays 9:00AM to 4:30PM Central Time. Please provide product name, bag size, date, price and numbers found below price for each package. 2010 Frito-Lay North America, Inc. Visit our website @ fritolay.com.