AEON MALL Japan - UNIQLO's HEATTECH is a must-have on cold and chilly days. HEATTECH, made from a special fabric that absorbs moisture from the body and converts it to heat, is
ユニクロ公式 | ヒートテックコットンクルーネックT(長袖)
How much 'tech' is actually in Uniqlo's HeatTech? | Uniqlo | The Guardian