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DOI: 10.1002/adma. 201604262 radiance, lighting, and temperature and represent a potentially new class of adaptive energy-saving building envelopes.[30–32] To control the tilting angle of individual “louvres” so that they reflect the excess solar radiance from the incoming light, it is important to precisely control the buckling orientation of the kirigami sheet. However, each “louvre” or unit cell in the kirigami structure can buckle up or down—the kirigami structure is mechanically bistable. If not controlled, it would lead to geometric frustration and undesired random disordering.[33, 34] Meanwhile, since the direction of the sunlight, the illuminance level, and the amount of solar radiation change during the day and within the building depend on the climate conditions at a specific location, it will be also highly desirable if the kirigami structure can be programmed to achieve multiple configurations, in a controlled fashion. Here, through combined experiments and finite element method (FEM) simulation alongside analytical models, we demonstrate the design of kiri-kirigami (ie, cuts on cuts)-based metamaterials that can be programmed to tilt into different orientations on demand, as well as potential applications in reflecting or transmitting sunlight as energy efficient building skins.