This years t-shirts for the volunteers and the walkers who raised enough money to get one, had a big white spot on the back that said I'm walking for (or volunteering for) and you could write in what you wanted. I thought that was really cool. My DD asked me about it during the walk when others were walking by with their t-shirts on and I told her you'd write in who you are walking for - she said no she'd write in she walks for MS and everyone who has it. Isn't she sweet?