Sizeism is aligned with the social construction of the ideal or "normal" body shape and size and how that shapes our environment. In the U.S. we can observe many public facilities shaped by this "normative" body including; telephone booths, drinking fountains, bleachers, bathroom outlets (sinks, toilets, stalls), chairs, tables, turnstiles, elevators, staircases, vending machines, doorways...to name a few. Design assumptions are drawn about the size and shape of the users (height, weight, proportionate length of arms and legs, width of hips and shoulders).