New Balance Women's In Transit Half Zip Jacket, Black Heather, Medium. When it's cool, you'll be cozy in the New Balance Impact Run Half-Zip Top. The space dye knit gives it modern looks, while thumbholes, reflective trims and a media pocket deliver modern function. Plus, shirring at the front zipper gives it feminine style. Wear it alone or as the perfect layering piece under a windbreaker.