– ‘HEATTECH Extra Warm’ is 1.5 times warmer than our regular ‘HEATTECH’. *Based on CLO values, which indicate the thermal insulation of clothing. Comparison with standard ‘HEATTECH’. – 100% SUPIMA® cotton lining is gentle on the skin. *The outer material is made with standard cotton, acrylic, and other textiles. – With Heat of Absorption, HEAT RETENTION, deodorizing, moisture-wicking, soft texture, and shape-retaining features. – Ultra Stretch for freedom of movement and easy layering. – Cozy brushed fabric. – Versatile crew neck design. – Stays hidden under outer layers.
Premium 100% SUPIMA® cotton lining. 1.5 times* warmer than our regular ‘HEATTECH’.