ThermoNet (R) neckwear designed for great protection against the cold and lightweight. Extremely warm and lightweight multifunctional tubular designed for maximum protection during outdoor activities in cold weather: ideal for running, hiking, cycling or riding a motorbike. ThermoNet (R) technology is created to be 4-times warmer microfiber tubulars. Highly breathable, quick drying and top comfort for a multifunctional and seamless protection. Buff ThermoNet Tube | Black | Christy Sports