Smartwool makes super functional outdoor clothing, best known for their merino socks, but they also make a few great clothing items like this one every now and then.
This is a great midlayer for cold weather or standalone jacket for the Spring / Fall. Merino in dark hunter green on the back and arms, neon lime insulated sections in the front, so your core stays warm but your back doesn't overheat during high exertion. Great for biking, skiing, running, hiking - pretty much whenever you plan to be active outdoors in cold weather and your movement will generate a bit of heat, or if it's cold and wet out. Merino is nature's best performance fabric.
Integrated thumbholes and audio cable port, premium zips. Worn sparingly with very little signs of wear, 9/10.