WSI’s warmest base layer shirt is designed to keep you comfortable in temperatures from -20° to 50°. Lined entirely with HEATR® fabric, it provides exceptional warmth throughout. This jacket features a full zip for easy layering, a handy sleeve pocket for essentials, and thumb holes for added warmth and comfort. Proudly made in the USA, it combines dependable quality with superior performance.
- WSI's warmest base layer shirt
- Warmest: Ideal for temperatures of -20° to 50°
- HEATR® fabric is located throughout the entire lining of the shirt.
- Features a full zip, sleeve pocket, and thumb holes
- Proudly Made in USA
Care Instructions:
- Machine wash cold, gentle cycle, with like colors
- Line Dry
HEATR®: 70% Polyester, 27% HEATR®, 3% Spandex
HEATR® is a high-tech material developed by WSI that helps keep you up to 40% warmer than other materials on the market. Fibers that are integrated within the fabric expand and heat up as they come into contact with the skin. Since the fibers are integrated in the fabric, they will not wash out.
Advanced wicking properties, anti-microbial properties, and anti-snag technology
SoftTECH™: 92% Polyester, 8% Spandex
Buttery Soft
Great against the skin
Advanced wicking properties
Anti-microbial Properties
Anti-Snag technology

*This item will ship separately, Free Shipping over $100 may or may not apply - see shipping rates at checkout