KENSEN.CO.LTD is a company in Japan. We manufacture thermal underwear to a high quality standard. The name is called a [HIDAMARI]. The [HIDAMARI] means the following things in Japanese. It is healthy and it is comfortable. a good, warm point each day. There are various kinds of [HIDAMARI]. thermal long johns,Socks and supporter, etc. Everything is produced in Japan these. Please feel free to inquire of interested one in such a commodity.