They were first introduced in 1998 , and were marketed using the Lay 's , Ruffles , Doritos , and Tostitos brands .
Lay 's WOW Chips were fat - free potato chips produced by Frito - Lay containing Olestra .
Lay 's WOW Chips were first introduced in 1998 , and were marketed using the potato chips   , Ruffles , Doritos , and Tostitos brands .
Lay 's WOW Chips were fat - free potato chips produced by Frito - Lay containing Olestra .