Thermal underwear can be worn at other times during the year besides winter. The underwear is great for those cold days when you want something extra to wear. Thermal underwear is also good if you need an extra layer of clothing if you are going to be working around the house. Men and women can wear thermal underwear, and there are sizes for adults and children. When the winter days get cold, one of the things that you can get is thermal underwear. The underwear usually comes in a pack, and there are one to two sets in each pack. They are sold at most retail stores. Thermal underwear comes in sizes for adults as well as children. Some of the thermal underwear for children has feet in them so that they stay extra warm. Children can wear the underwear to bed, or they can lounge in the house while wearing the underwear. Many adults like wearing thermal underwear because the product is very comfortable. Most of the thermal underwear sets are made of cotton. They come in different colors and sizes so that most people can find a pair to wear. If you have a job outside to do, you can wear thermal underwear underneath your clothing. During cold weather, thermal underwear can keep you warmer than just wearing pants and a shirt with a coat. If you get your clothing wet or dirty, you can take your clothes off and wear your thermal underwear. Thermal underwear is great to wear under coveralls if you plan on being outside for a long period of time. One of the things that women like about wearing thermal underwear is that they can wear a robe over the clothing and then stay in the house all day. Thermal underwear is not like regular pajamas. It is comfortable and suitable to wear almost anywhere as long as you have something else over it.