While a wide variety of styles were popular during this period, including boots, espadrilles, oxfords, sneakers, and sandals of all description, with soles made of wood, cork, or synthetic materials, the most popular style of the late 1960s and early 1970s was a simple quarter-strap sandal with tan water buffalo-hide straps, on a beige suede-wrapped cork wedge-heel platform sole. These were originally introduced under the brand name Kork-Ease but the extreme popularity supported many imitators. Remarkably, there was very little variation in style, and most of that variation was limited to differences in height.