Kiba is an active chair that promotes movement to strengthen the core, while improving balance and flexibility. The angle seat allows user to sit at a perching position, which is the least harmful solution to the lower back when seated. The planar seat activates the sit bone to support the upward drive of the spine. A benefit to sitting in this position is that weight can be sense through the feet allowing for higher body awareness. The simple design allows for low cost manufacturing and modular customization.