FIT & DESIGN: Fitted base layer Classic, reversible fit Warms your core and manages ventilation and perspiration Heat-reflective material amplifies 4-5 degrees while also reflecting 20% of your escaping body heat back to you Anti-chafing construction prevents rubbing in areas of high friction Raglan sleeves provide a comfortable fit during a variety of activities Reflective accents for visibility during late night and early morning activities TECHNOLOGY: Ergonomically placed MaxWick™ for increased breathability in areas where the body runs hot Heatwave™ technology provides warmth and moisture-wicking properties for increased comfortability during all-day wear Polygiene® anti-microbial mesh offers increased ventilation that reduces odor