When the outdoor-minded gear junkies at Klymit posed the question, "How great would it be if I could control the amount of insulation in my jacket?" the answer must have been pretty great: Their inflatable jacket is expected to hit the market in 2013 with the help of its Kickstarter campaign. Here's how it works: Zip up the jacket as you head out for a jog around the park or an ascent up Mount Everest. Pump the inflation port in the left pocket to allow the chambers to conform to your body. As you warm up while running or climbing, maintain your climate control by deflating the jacket.