What Our Gearhead(R) Experts Are Saying: "I was blown away by how warm this pullover is for the weight. The mesh fabric feels almost weightless but traps heat better than any midlayer I've used. I wear it climbing, hiking, or even lounging-it's that comfortable and versatile." The Mountain Hardwear AirMesh 1/2-Zip Pullover proves that a single layer can transform your entire kit. Built from innovative hollow-fiber mesh that traps warmth and wicks moisture at lightning speed, this pullover feels impossibly light yet insulates like a much heavier layer. Raglan sleeves and low-profile thumbholes keep movement unrestricted on steep approaches or while setting up camp, while the drop-tail hem adds a touch of extra coverage where you need it most. The 1/2-zip design makes it easy to dump heat in a hurry or pull on over a baselayer when the temperature drops. From crisp alpine starts to chilly evenings by the fire, this is the layer you'll reach for every time.