RefrigiWear Econo-Tuff® Frock Liner 

Don't let how light it is fool you. The Econo-Tuff® Frock Liner is warm enough for below freezing temps, and durable enough to tackle the toughest jobs. When you're walking out of the office or lab into the cold, this liner has got you covered. It fits perfectly under frocks or lab coats, giving you the on-the-job protection you need. Econo-Tuff® warms you up without weighing you down.