UPDATE T-SHIRT
Step 1: You will need to follow this link to log into your RunSignup account, https://runsignup.com/Profile
Step 2: In your Upcoming Events find the Twilight 12K and select "Manage Registration".
Step 3: You will be brought to your Twilight 12K Registration information page. Here you will select "T-Shirt" in the above menu bar.
Step 4: You will then be able to use the drop down menu to update your shirt size, and then you can select CONTINUE.