This Mizuno Breath Thermo Long Sleeve Mock is perfect for those cold days when you still want to hit the course. Thermal fabric is able to absorb moisture from the body to create heat, while added wool provides increased warmth and comfort. The fabric also is moisture-absorbing to manage humidity and defend against sudden changes in the external environment. Meaning even when temperatures drop or the weather changes quickly, you can stay warm and continue with your round. The yarn is also antibacterial and has deodorizing features to control odors.