Stay cool and collected during high-heat workouts with the Under Armour Iso-Chill Run Crew-Neck Short-Sleeve Shirt for Ladies. Iso-Chill fabric pulls body heat away from your skin, effectively making it feel cool to the touch. Plus, a mesh back panel enhances breathability. 4-way-stretch construction ensures the material moves with you, and the fabric also wicks moisture, dries fast, and resists odors for high-performance comfort. Split back can be worn open or tied up for a slimmer fit. Reflective details for low-light runs. This workout shirt is made of 90% polyester/10% elastane. Machine wash. Imported.Manufacturer style #: 1361926. 90% polyester/10% elastane Iso-Chill fabric provides a cool feel Breathable mesh back panel 4-way-stretch construction Wicks moisture, dries fast, and resists odors Split back can be worn open or tied up Reflective details