Brooks Brothers Green Pink White Striped Polo Country Club Cotton XL Men's

Brooks Brothers Green Pink White Striped Polo Country Club Cotton XL Men's This is in great condition, but there is something on the front. I'm not sure if it will come off. The spot is smaller than a dime. I'm not sure what it is. Please see photos. Performance knit. Shoulder to shoulder 21'' Armpit to armpit 25'' Length 33'' 100% cotton