NWT: Birdie Longsleeve Polo Size XL Color Black The best polo for keeping you cool. Lightweight, breathable, and ultra-quick-drying, our Birdie Polo is designed to take you from meetings to your next match. 83% recycled polyester/ 12% Lyocell/5%spandex The best polo for keeping you cool as a cucumber. The Birdie Longsleeve Polo keeps you comfortable — both on and off the course.