The "All season shirt" concept is uber delicioulsy cool and geeky in some designer way. It's one shirt that functions both as long and short sleeve on the same shirt. Feeling hot, no worries, just tuck your arms in like a turtle, rotate your shirt a few degrees, and extend your arms back out the short sleeves. Whala! Now the long sleeves are just ornamental designs dangling off your chest. HOW COOL!!!!
Bytrico has a bunch of other cool shirts as well. If your in Tokyo, ya gotsta stop by and check them out. They are a little pricy, but I dont know anywhere else that you can find unique shirts like these.Go shop!