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      Product Specifications

      Composition

      95% Polyester/5% Elastane

      Item #

      055630

      Style #

      1298831-001

      US sales only.

      Under Armour Reactor Run Short Sleeve Tee Men's

      Taking over as the next big technical running top, the Under Armour Reactor Run Short Sleeve Tee for men features well-crafted technology. The ColdGear® Reactor technology offers Smart Insulation that provides adaptive, balanced warmth during any level of activity. This lightweight, fitted style is made from 4-way stretch fabric for ultimate freedom of movement.

      • Reflective UA logo at left sleeve and at back yoke.
      • Features 360° Reflectivity for enhanced visibility.
      • ColdGear® Reactor helps regulate warmth to keep the body temperature balanced.
      • Fitted style helps provide an athletic look and feel.
      • Specialized panels at high-heat zones offer enhanced comfort.

      Sizing

      Small: 35-37" chest
      Medium: 38-40" chest
      Large: 41-43" chest
      Extra Large: 44-46" chest
      2XL: 47-49" chest

      *Measurements refer to body size, not garment size.