- 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.