IT'S ALL ABOUT THE AIR. The Nike Air Fleece Top features soft fleece and slightly stretchy knit fabric on the sleeves and pocket for warmth and comfort. The pattern celebrates 40 years of Nike Air. Fleece on the front and back feels extra soft on the inside for warmth and comfort. Slightly stretchy knit fabric on the sleeves and pocket lets you move comfortably. The pattern celebrates over 40 years of Nike Air history.