NEVER WORN BEFORE Our signature Jacks Flat Sandal but with a larger width – the design that put us on the map in the early 1960’s. Adored for more than 60 years, our iconic sandal has evolved for the 21st century with all the features and benefits of the classic but now with an obsessive attention to fit, comfort, materials and details. Construction: We built more flexibility into the construction for an extra comfortable walking experience and added a textured detail to the outsole for improved traction.