The Deluxe model features a new reclining armrest system, where the armrest can be simply moved out of way on one or both sides. It also boasts a new telescopic self levelling leg system, for maximum adjustment. Korum's patented vertical leg design, now uses a rounded 23mm square leg design to make it easier to use than ever before. S23 improves the stability and leg adjustment system, whilst also making the chair much easier to use with chair accessories. The mattress is made from the highest quality lightweight materials, providing improved breathability and comfort.