Nothing is quite so comfy, relaxed, and chic as an oversize button-down, which may explain why it has become such a wardrobe staple as of late. "[They're] super versatile and [were] seen all over the spring runways," Rebecca Brewer, senior buyer at FWRD, told POPSUGAR. "Throw [one] over a swimsuit as a cover-up, wear it as a dress with some cute boots, or pair with denim shorts."