Ultra-soft knitted fabric with a smooth surface and a plush interior for optimal insulation. The material drains sweat away and dries very quickly. The 4-Way Stretch design allows the material to be elastic in all directions. The wide collar with breathable mesh panel and adjustable drawdown can be pulled over the nose and mouth. Thumb holes on the sleeves for better hold of the sleeves in place and insulation. Contoured hem for a better fit to your figure. Reflective details for running in low light conditions.