After a great workout, a long walk or when you just need to unwind after a tough day at the office, the SportubXS™ series is the choice for therapy, relaxation and fun. The SportubXS™ series offers all the comforts of the Sportub™ spas, but with more available therapy jets and other exciting features such as our RIBS™, Relief-In-Back-System and Comfort Pillows.