Nike Chill Knit Flared Leggings Black / SailGrounded in style, comfort and versatility, meet Nike s take on luxury loungewear. The ribbed fabric is soft with just the right amount of stretch, while hem vents add a flared look. 61% Polyester, 31% Rayon, 8% Elastane Rib Knit Elasticated Waistband Flared Leg Embroidered Swoosh Style Code: FQ2113-010.