#1 selling technology in glove liners, now available for your whole body

• Classic Fit / Reversible
• Heatwave™ for More Warmth & Rapid Wicking
• Anti-Chafing Flatlock Seam Construction
• Polygiene® Mesh Anti-Microbial Ventilation Zones
• Raglan Sleeves for Comfortable Fit During Activities • Reflective Hits at Nape of the Neck

• 4-Way Stretch Moisture Control/Breathable Heatwave™ with Integrated Spandex for Improved Stretch, Shape, and Maximum Comfort • Ergonomically Placed Max Wick™ Fabric For Increased Breathability • High-Performance Power Mesh for Increased Breathablilty at Perspiration Zones A thin base layer with ultimate warmth - the Heatwave™ reversible top harnesses the amazing warming power of Seirus® exclusive Heatwave™ technology. The heat-reflective material amplifies 4-5 degrees while also reflecting 20% of your escaping body heat back to you. With brushed Max Wick™ next to skin for optimal wicking and ventilation throughout. By maintaining a warm core you increase blood flow, which also helps keep your extremities warm.

SHOP OTHER BASE LAYER
Women's Winter Weight Bottoms
Men's Winter Weight Top
Men's Winter Weight Bottoms
Women's Mapped Top
Women's Mapped Bottoms
Women's Mapped ¼ Zip Mock Neck Top
Men's Mapped Top
Men's Mapped Bottoms
Men's Mapped ¼ Zip Mock Neck Top
Men's All Season Top
Men's All Season Bottoms
Women's All Season Top
Women's All Season Bottoms

Base Layer Snowbound

Mens Heatwave™ Body Mapped Base Layer Quick Hoodie Top

Mens Heatwave™ Body Mapped Base Layer Quick Hoodie Top

Womens Heatwave™ Body Mapped Base Layer Quick Hoodie Top

Womens Heatwave™ Body Mapped Base Layer Quick Hoodie Top

Mens Heatwave™ Body Mapped Base Layer Long Sleeve ¼ Zip Mock Neck Top

Mens Heatwave™ Body Mapped Base Layer Long Sleeve ¼ Zip Mock Neck Top

Womens Heatwave™ Body Mapped Base Layer Long Sleeve ¼ Zip Mock Neck Top

Womens Heatwave™ Body Mapped Base Layer Long Sleeve ¼ Zip Mock Neck Top

Mens Heatwave™ Body Mapped Base Layer Long Sleeve Top

Mens Heatwave™ Body Mapped Base Layer Long Sleeve Top

Women's Heatwave™ Body Mapped Base Layer Long Sleeve 1-4 Zip Top

Women's Heatwave™ Body Mapped Base Layer Long Sleeve 1-4 Zip Top

Men's Heatwave™ Body Mapped Full Length Bottom

Men's Heatwave™ Body Mapped Full Length Bottom

Women's Heatwave Mapped Full Length Bottom

Women's Heatwave Mapped Full Length Bottom

Men's Heatwave™ Winter Weight Long Sleeve Crew Top

Men's Heatwave™ Winter Weight Long Sleeve Crew Top

Women's Heatwave™ Winter Weight Long Sleeve Crew Top

Women's Heatwave™ Winter Weight Long Sleeve Crew Top

Men's Heatwave™ Winter Weight Full Length Bottom

Men's Heatwave™ Winter Weight Full Length Bottom

Women's Heatwave™ Winter Weight Full Length Bottom

Women's Heatwave™ Winter Weight Full Length Bottom