• Classic Fit / Reversible w/ Reflective Hits At Chest & Legs
• Lightweight Heatwave™ for All-Season Warmth & Rapid Wicking
• Anti-Chafing Flatlock Seam Construction
• Raglan Sleeves for Comfortable Fit During Activities

• 4-Way Stretch Moisture Control/Breathable Heatwave™ with Integrated Spandex for Improved Stretch, Shape, and Maximum Comfort

A thin base layer with ultimate warmth - the Heatwave™ All Season Top harnesses the amazing warming power of Seirus® exclusive Heatwave™ technology, now in an even lighter weight! 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
Men's All Season Bottoms
Women's All Season Top
Women's All Season Bottoms
Women's Winter Weight Top
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

Run Base Layer - View All

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

Mens Heatwave™ Body Mapped Base Layer Long Sleeve Top

Mens Heatwave™ Body Mapped Base Layer Long Sleeve Top

Women's Heatwave Mapped Full Length Bottom

Women's Heatwave Mapped Full Length Bottom

Men's Heatwave™ Body Mapped Full Length Bottom

Men's Heatwave™ Body Mapped Full Length Bottom

Men's Heatwave™ All Season Full Length Bottom

Men's Heatwave™ All Season Full Length Bottom

Men's Heatwave™ All Season Long Sleeve Top

Men's Heatwave™ All Season Long Sleeve Top

Women's Heatwave™ All Season Full Length Bottom

Women's Heatwave™ All Season Full Length Bottom

Women's Heatwave™ All Season Long Sleeve Top

Women's Heatwave™ All Season Long Sleeve 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

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