Wristify – Wearable AC!
http://www.wired.com/2013/10/an-ingenious-wristband-that-keeps-your-body-at-the-perfect-temperature-no-ac-required/

MIT Wristband Could Make AC Obsolete | WIRED

A team of students at MIT is working on a prototype wearable that asks one important question: Why heat or cool a building when you could heat or cool a person?