The T-shirts of the season go on sale today and benefit the Burundi Solar Project, which is raising $450,000 to build a hospital in Kigutu, Burundi. The charity was founded by Elettra Wiedemann and her boyfriend James Marshall and PR whiz Joey Jalleo, who have commissioned designers Chris Benz, Giambattista Valli, Rogan, Phillip Lim, Rag & Bone and House of Diehl to design limited edition tees (only 100 of each!) for the project. Score yours today at www.justonefrickinday.com.