The new Hydro Flask 12oz Cooler Cup is two great things in one: it's a can or bottle cooler, and, with one quick switch, it's a 12 ounce beverage cup. As a Cooler Cup, it's brilliantly versatile with a silicone sleeve that lets you slide in a narrow bottle or a can—all with the same snug fit. Pop off the sleeve and you have a 12 ounce cup made to keep cold drinks cold and hot drinks hot. It's the ultimate win-win.