Challenge Issued!

I need your help, friends. I can not seem to locate, online or otherwise, a yellow running shirt to wear at the St. Jude Memphis Marathon. It needs to be long-sleeved and, obviously, made of wicking material. Since yellow is the color of the Pray For Elijah reminder bands, I think it is appropriate to wear a bright yellow shirt. I plan to get printed on the sleeves "I Am Running For Elijah." I'll have to wear a maroon St. Jude Hero tank over it, so sleeve-printing is a must. If I can't find yellow, I will opt for a darker color with yellow printing. Help!