The tent sauna “VOZMO” has been available for pre-sale on the Japanese crowdfunding site “Makuake” since June 16, 2021, and is gaining popularity with sales exceeding 8 million yen. The tent itself is made of insulating material developed for use by the Antarctic expedition, and is supposed to be used with a wood stove inside. It is designed for outdoor use, but many people seem to be buying them for home use. Like the Finns, many Japanese like to use saunas, and the fact that it can be done at home is thought to have made it popular.