Under Armour Heatgear Charged Cotton Undeniable Tank - Women'sThe Under Armour Charged Cotton Undeniable Tank is made with a cotton-rich, tri-blend fabric that has a soft, athletic feel for superior comfort and performance. Signature Moisture Transport System wicks sweat to keep you cool, dry, and light. Antimicrobial technology provides a healthier environment. Shaped hem and rolled forward side seams offer a chafe-free finish. Small chest pocket for keys or cash. HeatGearŪ fabric works best in weather between 75 and 100 degrees. 55% cotton/34% polyester/11% rayon. Imported.