Chaco is a company specializing in men an women's performance footwear designed for outdoor activities, such as hiking, rafting, kayaking and camping. Currently devoted exclusively to sandals, Chaco's brief excursion into the boot market was well marked by outdoor enthusiasts. A large cult following of Chaco enthusiasts incorporate Chacos into their everyday lives. A barefoot enthusiast can always be identified by the tell-tale "Z" tan lines on the uppers of their feet. Chacos are now sometimes considered acceptable business attire and several couples have chosen to have their favorite Chacos rewebbed with white webbing for their wedding ceremonies. Chaco currently offers four different lines of sandals: Headwaters, Cross Current, Flip Side, and Andale.