Lay's Stax

Lay's Stax is a potato chip snack food. It was produced by Frito-Lay. It was introduced in 2003 as a direct competition to Pringles.
Lay's Stax potato chips are heavier and thicker than Pringles. The shape of Stax is a simple curve called a hyperbolic cylinder. Pringles are formed into a double-curve.