Abstract: An adjustable seating solution that enables users to adjust several seating characteristics is disclosed. In a relatively low sitting position, the disclosed device provides some support if the user leans back, but predominately supports the user's weight and requires the user to engage core muscles to maintain good posture. The disclosed apparatus enables the user to adjust the seat upward to a leaning position. A platform extends forward under the user's feet to ensure that when the user leans against the seat, the apparatus remains stable. The apparatus enables the seat portion to be tilted, such that varying contours can be selected to engage the user's body in a desired way. At low heights, the user can tilt the seat portion forward to require the user to further engage core muscles while seated. At higher heights, the user can customize the contour of the seat that engages the user's body.