Keep warm and cozy during your winter runs with the New Balance Women's Heatgrid Base Layer Top. This top is made with Heatgrid fabric, which provides excellent insulation and helps retain body heat. The fabric is also moisture-wicking, keeping you dry and comfortable throughout your run. The fitted design and stretchy fabric allow for a full range of motion, while the mock neck provides extra coverage. The top features flatlock seams to reduce irritation and chafing, and the thumbholes keep your sleeves in place. Whether you're running in the snow or braving the cold wind, this base layer top will keep you warm and protected during your winter workouts.