It has a minimal shape but luxurious appearance. Stackable chair exists in two types of expressive transparent and solid colour versions. Shell is made of polycarbonate with steel tube structure. The bar stool available in 2 types. X-Treme-BSS with short back rest and X-Treme-BSL with longer back rest. Anti UV stabilized. X-Treme bar chair is also available in fully upholstered shell version.