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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 Skinny Raven Half and select "Manage Registration".
Step 3: You will be brought to your Skinny Raven Half 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.