Coldpruf Men's Dual Layer Long Sleeve Union Suit

Our men's thermal underwear boasts a relaxed, one-piece design that allows for a full range of motion. Featuring a tagless construction and flat seams, this garment offers a soft, smooth feel against the skin. Crafted with a dual-layer engineering, the Merino wool fabric traps body heat between the layers, providing a natural barrier of warmth to combat chilly conditions.

The outer layer is made of a blend of Merino wool, combed ring-spun cotton, and nylon, while the inner layer is 100% combed ring-spun cotton, offering the desired warmth and comfort in very cold to extremely cold weather during low to medium activity levels. This unique ColdPruf Insulation System has been specifically engineered to trap air between the fabric layers, creating a natural warmth shield.

Available in regular sizes from S to 2X, our one-piece long johns feature a comfortable, full-button front and gussets, as well as a one-button vertical flap seat with branded, horn-style buttons. This versatile design ensures a relaxed, tagless fit that is both practical and stylish.

Reliable heat retention, comfort-driven construction, and versatile sizing make this thermal underwear an essential for outdoor enthusiasts and those seeking warmth in cold conditions. Whether you're hiking, camping, or simply lounging, this men's thermal wear is designed to help you weather very cold to extremely cold temperatures with ease.

The AUTHENTIC thermal underwear set is the perfect combination of natural warmth and unparalleled comfort. Crafted with meticulous attention to detail, this garment is the ultimate choice for those who demand the highest quality and performance in their cold-weather gear.

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