Extra Butter X Chaco Z1 Colorado ($130) The Z/1 Classic sandal was designed with an elevated fashion eye in mind, taking the loud colors and patterns of Chaco’s DNA and flipping the neptune patterned jacquard webbing to the underside of the foot wraps, providing a clean and classic look. With every purchase comes a specially designed sock, also featuring the neptune pattern, for the popular “socko” (Chaco and sock). Available online and in store at both locations.