XS - 2013 Model - NOT Dual Hazard, HRC1, Arc Rating 5.9 cal/cm2 AVAILABLE WHILE SUPPLIES LAST - NO RETURNS! The Power Grid FR 1/4 zip shirt provides maximum warmth to help you cope with the most extreme cold. These garments are constructed of Power Grid 4-way stretch fabric that offers enhanced comfort and range of motion. The unique grid construction maximizes warmth, minimizes weight, and improves breathability. Quarter-zip front with stand-up collar Excellent stretch, warmth, wicking...