Schijman explains how a hat can elevate even casual daytime looks. "If you have run out [for errands] and throw on an oversized coat, belt, and a loose beanie with sneakers or chunky snow boots, what could have looked like 'I threw this on to run to the store' now looks stylish," she says. "Not to mention the obvious benefit of keeping crazy static flat winter hair in place or hiding that last day of unwashed hair."