Designed with an anatomical cut, this thermal shirt harmoniously adapts to the contours of your body, providing a natural and comfortable fit during physical activities. Whether you're hiking, skiing, or simply enjoying a winter stroll, the Polartec Level I thermal shirt ensures unrestricted movement without compromising on warmth. Experience the freedom of movement without the irritation of chafing, thanks to the flat seams of this thermal shirt. The thoughtful design ensures that the seams lay smoothly against your skin, preventing any friction or discomfort. Embrace an active winter lifestyle with a shirt that prioritizes your comfort.

Polartec® is synonymous with quality, and the Level I thermal shirt lives up to this reputation. The premium materials ensure longevity and durability, making this shirt a reliable companion for winters to come. Invest in quality that stands the test of time. Adding another layer of reliability, the Level I Polartec thermal shirt features YKK zippers – a world leader in the production of clothes zippers. With 90% of all sliders produced in 71 factories worldwide, YKK's commitment to quality aligns seamlessly with the standards set by Polartec®. Trust in dependable fastening that complements the excellence of the thermal shirt.



For those with sensitive skin, the hypoallergenic properties of the Power Dry® material ensure a gentle touch. Additionally, the quick-drying feature not only contributes to your comfort but also facilitates ease of care for your thermal shirt. Don't let the winter catch you unprepared. Order your Polartec Level I thermal shirt now and embrace winter with confidence. M-TAC invites you to experience the perfect combination of warmth, comfort, and style. Elevate your winter wardrobe with the Polartec Level I collection, where performance meets perfection.

The designers have added a reflective brand logo on the chest, combining style with safety. Whether you're out for an early morning run or an evening adventure, the reflective logo adds visibility, ensuring you stand out even in low-light conditions. Stay stylish and safe with the Polartec Level I thermal shirt. The Level I Polartec thermal shirt is not just for extreme winter sports; it's designed for everyday wear and active physical pursuits. Whether you're commuting in the winter cold or engaging in your favorite outdoor activities, this shirt provides the ideal base layer of thermal underwear for a range of occasions.



Hypoallergenic and Quick-Drying: Gentle Care for Sensitive Skin For those with sensitive skin, the hypoallergenic properties of the Power Dry® material ensure a gentle touch. Additionally, the quick-drying feature not only contributes to your comfort but also facilitates ease of care for your thermal shirt. Don't let winter catch you unprepared. Order your Polartec Level I thermal shirt now and embrace the cold with confidence. M-TAC invites you to experience the perfect blend of warmth, comfort, and style. Elevate your winter wardrobe with the Polartec Level I collection, where performance meets perfection.