Our Men's Merino Sport Ultralite Jacket combines the benefits of Merino wool (breathability and temperature control) with the wind and weather resistance of a lightweight nylon outer shell. It's designed to let you move, with a fit that doesn't add extra bulk. And it's got reflective elements for when light conditions are dim. Tiny home- and travel-friendly, this jacket packs into its own right-hand pocket, so you can keep it handy for those cooler, less-than-blue-sky days.