100% Cotton and merino wool blend.
Duofold Wool-Blend Union suit is great thermal base layer underwear toasty warmth in the winter cold, perfect for hunting, skiing, cold weather hiking and more. This thermal underwear suit is constructed of two non-bulky layers: inner layer is 100% cotton, with the outer shell of 65% cotton/25% Merino wool/10% nylon for essential insulation from the elements. Soft, comfortable, and breathable, with natural wicking properties to help keep you dry as well as warm.
Materials: 2-Layer 6.3oz fabric: 100% cotton inside, 65% cotton/25% Merino wool/10% nylon outside
Ribbed elasticized cuffs
Flat locked non-chafe seams
Tag free collar
Full-length button-down placket
Convenient rear fly
Colors: Red, Navy
Sizes: Small through 2XL.
Recommended care: Machine wash warm, tumble dry medium to low. Do not bleach.