Mountain Hardwear Men's Polartec Microfleece 1/4 Zip PulloverMountain Hardwear Men's Polartec Microfleece 1 4 Zip Pullover A lightweight fleece pullover that does just about everything except create a big impact on the environment, the Polartec Microfleece HZ offers up go anywhere warmth thanks to its 100% recycled fabric. The breathable Polartec 100 fleece wicks moisture and provides soft, stretchy insulation whether it's under your rain shell in camp or over a T shirt on a chilly day around the house.