Shirt Size Charts

Here are the size charts for the shirts from each of our challenges. If you have any questions about the charts below, please email us at

Expert Brand Shirts

This includes the Run The Year 2017 shirt and the *new* Blue Amerithon Tech Shirt

Next Level Apparel

This includes the red Amerithon Tri-Blend shirts. Please note that our customers have mentioned that the Ladies shirt sizes are running small. We suggest ordering a size larger than usual.

If you have any questions about shipping or exchanges, please see our policies here.

Please direct any unanswered questions straight to us at or use our Contact Page.

“The greatest gift is not being afraid to question.” -Ruby Dee