Furnace Long John is the perfect cold weather hunting companion. With Merino-X 350g EXP weight fabric, these long johns delivers lofted insulation. Flatlock seams, a brushed jacquard waistband and articulated fit maximize comfort. The loft, structure, and stretch of the Merino-X fabric creates an ideal layering piece. Its brushed backside provides super-charged insulation without adding weight, so staying warm is key to success.