Under Armour Lady HeatGear Touch Raceback Lightweight UA Tech fabric - Has a softer, more natural feel, for incredible comfort 4-Way Stretch construction - Improves your mobility and accelerates drying time Superior Moisture Transport System - Helps to keep you dry, comfortable, and cool Anti-Odor technology - Prevents the growth of odor-causing microbes to keep your gear fresher, longer. Racerback design - Allows for full range of motion without chafing.