When you're pushing for a new PR, the last thing you want to be thinking about is your top. Thanks to Under Armour, you don't have to. Princess seams create a slim silhouette and chafe-free fit, while the raglan sleeves mean maximum mobility. The sleek, supersoft fabric adds a fast feel.

• ArmourVentTM mesh pattern woven into back and side panels for ventilation.
• Thumbholes in cuffs keep hands warm and keep sleeves from creeping up.
• Antimicrobial fabric inhibits the growth of odor-causing germs.
• Signature Moisture Transport System wicks away sweat to keep you dry and light.
• Boat neck with modern deep V back detail.
• Reflective logos deliver greater visibility on low-light runs.
• 95% nylon, 5% elastane.
• Machine wash cold.
• By Under Armour; imported.
• Women's Active & Swim.