1. Lay your existing jersey or best fitting performance shirt completely flat on the floor.
2. Measure from armpit to armpit in inches then multiply by two (2) to get the total width of the front and back.
3. Then look it up on our sizing chart below. Adjust to the next bigger size as needed. Our actual jersey width is measured the same way and as close as what is on our sizing chart below.
4. The TALL / LONG shirt length option is about 2-3 inches longer than the regular length.
** We measure our jerseys the same way, and it is what appears on our chart with a +/- .5 inch difference.
** Due to the custom nature of the product, all sales are final.