There's a plastic liner absolutely fitted to The within of the tub, with spruce thermowood covering the entire exterior on the tub. This liner comes pre put in with a cushty bench for sitting. After my cold exposures, I normally stand from the horse stance. That is a posture in https://globenewswire.com/news-release/2022/05/05/2437360/0/en/Renu-Therapy-Releases-New-Product-the-Japanese-Hot-Soak.html