Hanes Men`s X-Temp Thermal Pant 3X-4X - Best-Seller! N/A base-layer-underwear closure Soft, waffle knit thermal cotton-rich fabric gives you comfortable warmth. Tag-free for itch-free comfort. Shrinkage controlled for lasting size and shape retention. Sturdy seam construction for added strength and durability with smooth, flat no rub seams to prevent chafing. Fly Front. Size up for a roomier fit. For all-over warmth, pair with our matching thermal Crew or Henley.