It takes 3 gallons of water to dye a full yard of fabric. But through our partnership with e.dyeÆ Waterless Color System, we can introduce vibrant hues into our sandal straps without using a single drop. By switching to straps colored with e.dyeÆ Chaco is able to save an estimated .9 kWh in energy consumption and 2.5 liters of water per pair of sandals produced. e.dyeÆ Waterless Color System is available on all Chaco 30th Anniversary Collection styles. Want your Classic Sandals with pillow-top comfort? Introducing our travel-ready Z/Cloud series, featuring our same custom adjustable double-strap system, performance ChacoGrip rubber outsole, and a top layer of ultra-soft PU for instant-cushion underfoot. Every pair of Z/Cloud X comes standard with our podiatrist-certified LUVSEAT PU footbed for all-day comfort and support. Step in and feel the difference.