Women's Under Armour UA Launch Runsie in black. This runsie features a secure zip center back pocket, keyhole cutouts for ventilation and easy on-off, and 4-way stretch material for better movement. The fabric is super-soft and stretchy performance knit, designed to hold you in and stay up during runs. The fitted upper body is lined with mesh for comfort, while the loose woven shorts have an inner brief for lightweight durability. Made from 75% Polyester and 25% Elastane. Reference: 1383961001.