Inspired by cold-weather running, New Balance's Heat Grid Half Zip Top is a versatile, warming layer for those who want to get out and move. This women's running layer features New Balance's Heat grid fleece lining to help keep you warm while wicking away unnecessary moisture. The soft, stretchy poly-knit construction allows for unrestricted movement during high-output activity, while the woven sleeve pocket provides storage for a key or card for runs further away from home.