The idea came at the Café de la Paix in Paris: a small, light, compact protection against rain, made from a new coated nylon, foldable into a pouch with bright colours and a colourful zip. First called "En-cas," it was renamed K-Way in 1966 to evoke the American way of life; 250,000 sold that year, and by the 1970s more than two million units a year. Sophie Marceau wearing one in the 1980 film La Boum sealed its place in pop culture.
After decades of changing hands — Pirelli, then an Italian bank — the brand was taken over in 2004 by BasicNet, the Turin company also behind Kappa and Superga, and relaunched as a fashionable product with a wider range. The name has become so common it now broadly describes the garment itself.