If you don't have a henley, the long sleeve pullover that looks a bit like the top half of a union suit, now's the time to add one to your cold weather arsenal. Thankfully, you can find them almost everywhere these days, in a range of price points and fabrics. From J.Crew's vintage-inspired version and H&M's affordable pocketed style to the soft wool option by Ramblers Way. The perfect all-purpose shirt, a henley works in all sorts of weather but is especially ideal for layering in the winter. And while it's casual, that doesn't mean you can't dress it up with your favorite cardigan. After all, it's made for layering so pull a it over a T-shirt and under a flannel or shirt jacket, then top it with a puffer vest or top coat if it's really cold out.