Designed to insulate against the cold, yet remain breathable when it's hot, the HANRO Woolen Silk Longleg is tailored from a blend of luxurious merino wool and silk. Part of the HANRO Woolen Silk Collection, these long johns feature seamless sides, a seamed pouch and a saddle crotch for astonishing comfort and a smooth appearance beneath clothing. A soft elastic waistband and elasticized cuffs at the bottom of the pant leg ensure a custom fit.