The Mizuno Breath Thermo running headband is designed for training when temperatures start to drop. It will ensure you have the right balance between warmth and breathability during your run.
Details:
Breath Thermo
This is a unique type of insulation fabric which generates heat from the absorption of moisture. Heat is generated via a chemical exchange between perspiration and the properties of the Breath Thermo Fabric. This is especially useful for protecting the human body from cold temperatures.