Hundreds of soldiers will test a new lightweight shift designed to keep them dry and warm as the service looks for lighter, better-fitting cold-weather gear. Polartek, a fabric technology company, has created a new shirt soldiers can wear as a layer in cold-weather environments. The olive shirt features a zip collar and a "no-melt, no drip" design that, if it catches fire, will not stick to soldiers' skin. Read more on Military.com.