Fully adjustable height and arm length to properly fit 96% of all adults 5'2" to 6'6". The saddle grips naturally and is well-ventilated for continuous air circulation. Articulated saddle design pivots and rotates in tandem with body movement and features 1-1/4 inch of built-in dampening. Ergonomic handgrips contour to the hand, maintain a natural wrist angle and evenly distribute load across the palm.