The Nike Therma-FIT Sphere 4.0 is a running neck warmer made from soft, warm fabric that provides the right warmth to protect your runs from the most intense cold while maintaining maximum lightness and breathability.
Nike Therma fabric is the best defense against extremely harsh weather conditions: synthetic microfibers capture and trap body heat without adding weight. Furthermore, the breathable structure prevents the garment from turning into a sauna by allowing sweat to escape: this helps keep the skin dry and ensures maximum comfort.
