The volunteer coordinator decided to ask for t-shirt sizes during the online registration starting in 2011 to help get more t-shirt to accurately fit our volunteers. The t-shirts need to be ordered over a month prior to the event, and volunteers are constantly changing until the day of the event. Therefore, this process is making things much better than they have been in the past, but it will never be 100% correct unfortunately. We apologize for any inconvenience it causes when you get a different size than you signed up for.