Keep warm during the cold months with Big R’s super comfortable, super cozy thermal long johns for men. Available in tops, bottoms, or one-piece union suits, these thermals are bound to make wintertime work and activities much more bearable. Big R has an assortment of mens thermals for sale including tops with a variety of handy features. These features consist of odor-fighting properties, FastDry technology to whisk away moisture, smooth flatlock seams, and Stain Breaker technology to prevent stains. Some thermal tops have a dropped tail for added coverage and warmth. Also available are thermal bottoms, some of which feature FastDry technology, odor-fighting properties, and tapered cuffs for extra warmth. Depending on the style, these thermal long johns for men feature ColdGear technology to help you absorb and retain your own body heat. Big R’s collection even includes one-piece union suits for maximum warmth on frigid winter days. Each suit has a back opening with button closure and reinforced stitching for years of use.