These waffle knit thermal pants are a great layering piece for extra warmth in cold weather, or wear by themselves when lounging around at home. Made of a soft and breathable thermal waffle knit fabric, the long johns retain your body heat while wicking away moisture to spare you from discomfort due to overheating. With a snug fit that hugs close to the body plus an elastic waistband and ankles that stay put, you won't have to constantly adjust them when wearing them underneath a pair of pants.