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The velvety touch of the lightweight Nike Denier Differential half-zip top for women makes it an easy choice for cool-weather activity. Lightweight Dri-FIT(R) fabric helps keep you comfortable by moving sweat off your skin for rapid evaporation. Large and small yarn construction enhances wicking by taking advantage of the difference between the size of the 2 yarns. Mesh insets under arms and along upper back vent excess body heat. Half-length zipper allows on-demand ventilation; flap wraps the top of the zipper to protect chin from abrasion. Cuffs extend to help keep hands warm. Rear pocket offers secure storage for small items. Flatlock seams reduce chafing and increase comfort. Nike Denier Differential Half-Zip features reflective highlights to increase visibility in dim light.