HEATTECH Ultra Warm T-Shirt | High Neck

– The ultimate thermal base layer, even in the most extreme cold.
– Ultra Warm is 2.25 times* warmer than our regular HEATTECH. Updated fabric with a smooth, brushed feel. *Based on CLO values, which measure clothing’s thermal resistance. Comparison with standard ‘HEATTECH’.
– High-performance fabric with Heat Absorption, HEAT RETENTION, and moisture-wicking comfort features.
– A warm layer with a fluffy, brushed lining.
– Stretch fabric allows easy movement even when layered.
– Warm, high neck with a comfortable fit.

Compare 3 Types of ‘HEATTECH’ Fabric:

‘HEATTECH’
– Lightweight yet warm, ideal for everyday layering.
– Recommended for 41 °F to 68 °F for mild winter days or cozy indoor wear.

‘HEATTECH’ Extra Warm
– About 1.5× warmer than original ‘HEATTECH’, offering added insulation without bulk.
– Perfect for colder days with recommended temperatures from 23 °F to 59 °F.

‘HEATTECH’ Ultra Warm
– Our warmest option, approximately 2.25× warmer than original ‘HEATTECH’.
– Designed for more extreme cold with a recommended range of –4 °F to 50 °F.

Product ID: 469757,460407

Please note that this product may have different product ID, even if it is the same item.

– The images shown may include colors that are not available.

Our brand is continuously working to improve our understanding of the production process in our supply chain and to verify this information both in-house and with third parties. By having full understanding of the origins of raw materials, and the locations of the spinning, material production, sewing, knitting, and assembly processes, we are improving quality of our clothing and at the same time aiming to thoroughly ensure safe and secure manufacturing. We will continue to post information for customers to access and learn more about their clothing.

*The information on material production locations applies to products manufactured after 24FW.