The Pure Cube Hudson Sauna combines the new modern appeal with black metal exterior siding and Western Red Cedar Interior. This sauna model seduces you with its tempered glass front wall and door, embrace the heat of the Pure Cube Hudson sauna on wide 2 level benches. Available with different options to meet your specific needs! The optional Insulated walls and roof include 3" (8cm) EPS Foam which is moisture resistant, meets LEED criteria, is 100% recyclable and has an R-Value of 11.25. The metal siding and trim is made with 28 gauge steel that is painted and has a 40 year warranty on the paint finish.