Seirus Men's Carbon Heatwave™ Winter Weight Base Layer Bottom Size XL

A thin base layer with ultimate warmth - the Heatwave™ reversible bottom harnesses the amazing warming power of Seirus® exclusive Heatwave™ technology. Classic Fit / Reversible Heatwave™ for More Warmth & Rapid Wicking Anti-Chafing Flatlock Seam Construction Polygiene® Mesh Anti-Microbial Ventilation Zones Brushed-Back Elastic Wastband for 'Stay-Put' Fit & Gusseted Undercarriage For Increased Mobility Reflective Hits on Legs 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 Imported New With Tags.