Unopened Shimonoseki Kaikyo Marathon Commemorative T-shirt, Size S, made by Mizuno It's a bright light blue. This year at the Kaikyo Marathon, I saw many people running in this shirt. Since it's made by Mizuno, I think it has good absorbency and breathability. I tried various commercially available running wear for my first full marathon, but ultimately, this Mizuno wear was the best!