Two-layer engineering
Traps air between layers providing a natural barrier of warmth
Full button front Union Suit with single button rear flap
Inside Layer: 100% combed ring spun cotton
Outside Layer: 65% combed ring spun cotton, 25% MERINO WOOL, 10% Nylon
Fabric weight: 6.6 oz.
Tagless design and flat seams provide smooth fit and extra comfort
Soft cotton next to skin