Just log in to the store and go to your TC Member Center. Scroll down to the Miscellaneous section and select your T-shirt size from the drop down menu (you can choose size small to XXXL).
That’s it! Any T-shirts won in Leadership Challenges and other contests will be shipped to you without delay in the size you’ve set. Of course, if you don’t set your size, you’ll still get your T-shirt. But by setting your size now, you’ll be sure to be sporting your winner’s T-shirt and bragging rights in record time!