Mizuno Breath Thermo Premium Hot Round Neck Short Sleeve for Daily Lightweight Women's Inner, Heat-Generating Material, Shirt, Black, C2JAC813, Use,

Lightweight and stretchy for comfortable wear. High stretchability and durability. Breath Thermo is a moisture-absorbing, heat-generating material that absorbs moisture from the human body and generates heat, making it a comfortable, heat-retaining material.