ArcticShield is comitted to bringing you a full line of outerwear that works as a "Complete Body Warming System". Our exclusive RE-tain technology will keep you warm regardless of temperature or wind chill. RE-tain is not a traditional insulation, which is bulky and only slows heat loss; it's a thin multi-layered heat resistant thermal barrier that captures and returns up to 97 percent proof, breathable and the unique open cell inner layer helps wick away moisture. Only ArcticShield products combined with RE-tain technology provide a "Complete Body Warming System" that really works.