Vintage Crispy, a new chapter in the history of Heritage9.1. We used a double-cylinder machine dating back to 1948 to create a 3:1 rib cotton sock with a vanisé weave. What is vanisé? A knitting technique that uses different threads on the inside and outside surface of the fabric. The result is a contrasting shade of color that takes shape between the ribs. Why CRISPY? For its softness but at the same time "crunchy" robustness of its cotton.