Pringles have about 42% potato content, the remainder being wheat starch and flours (potato, corn, and rice) combined with vegetable oils, an emulsifier, salt, and seasoning [REF].
In July 2008 in the London High Court, P&G lawyers successfully argued that Pringles were not crisps (even though labelled "Potato Crisps" on the container) as the potato content was only 42% and their shape, P&G stated, "is not found in nature".