The Mizuno Mid Weight Breath Thermo women's base layer is made from soft, stretchy thermal fabric, perfect as a first layer when out on colder days.
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.