Lay's Stax is a potato chip snack food produced by Frito-Lay, a subsidiary of PepsiCo.[1] It was introduced in 2003 as direct competition for Procter & Gamble's (later Kellogg's in 2012 and Kellanova in 2024) Pringles.
Stax compared to Pringles
Lay's Stax are heavier and thicker than Pringles. The shape of Stax is a simple curve called a hyperbolic cylinder, while Pringles are formed into a double-curve known as a hyperbolic paraboloid. Stax have the flavoring spread across the inside curve of the chip while Pringles have them across the outside curve. Stax are packaged in plastic canisters while Pringles are packaged in canisters made of cardboard and aluminum.[2]