During the bitterly cold days of winter, if you’re working outside your house, doing the odd errand in town, or playing outdoors with your kids, a thermal union suit is an ideal one piece under garment to wear for such occasions. Designed for comfort and to keep you warm, a union suit is less bulky than adding layers of long underwear and t-shirts. If you are doing serious labor outdoors though, you may want to invest in more synthetic and merino moisture wicking wool to truly keep you warm as well as dry.
Union suit with flap:
Union suit with flap pictured: Duofold Men’s Original Midweight Long John