Application is no extra charge when ordered with an umpire shirt. Please allow 1 to 2 extra days before shipping. The great look of sewn twill - without sewing! 4" Varsity numbers You can apply these yourself, but there is no warranty for self-applied numbers. We will re-apply or replace numbers to your shirt if they should become unattached for 90 days after purchase date. Customer pays shipping back to The Batter's Box and The Batter's Box will pay for shipping back to the customer. Re-apply or replace is at The Batter's Box discretion. Type your number in the box so we know what number you are (24, 42, 18, 81, etc.). To apply yourself put your iron on the wool setting. Place wax paper between the iron and the numbers and press for 1 minute. DO NOT put the shirt in the clothes dryer - ever. Drip / hang dry only.