Your jersey is ordered for you each season. Additional Jerseys are not kept in stock by Loudoun NFL Flag Football League, so please reference this chart if you are in doubt about what size to order. Please also note that there are no Adult Small sizes, since they offer a Youth X-Large. In rare cases, at time of our season order, NFL Flag may be out of your size. In this case, we will get the next size up. We try our best to monitor NFL Flag inventory before the season starts and direct coaches to select a different NFL team to avoid this issue.