“Based on the one piece long underwear worn for the past century in the America’s, the Union Suit is a classic outfit that is designed for comfort and warmth. It features seamless construction with raglan shaping, a front buttoned opening from neck to gusset, a backside opening with buttoned flap, a roomy gusset, tapered arms and legs & twisted rib cuffs. Approximately 4” (10cm) of positive ease allows for comfort and room to grow.