The two crossword solutions for the term 'polo shirt brand' are IZOD (4 letters) and LACOSTE (7 letters). IZOD is an American clothing brand that was founded in 1922 and is known for its preppy style. The brand is most famous for its polo shirts, which feature the iconic IZOD logo. LACOSTE is a French clothing brand that was founded in 1933 by tennis player Rene Lacoste. The brand is known for its classic polo shirts, which feature the iconic crocodile logo. Both IZOD and LACOSTE are popular brands for polo shirts.