By now we all know that sitting at a desk all day is disastrous for our health. It’s no longer uncommon to see a stability ball tucked underneath a co-worker’s desk in place of a traditional chair. Having attempted ball-as-chair at home, my biggest complaint was that the moment I got up, the ball rolls away or shifts. In a work environment, the visual of a stability ball–even a stability ball in a chair frame– still gives me more of a gym rather than a professional vibe. The Jellyfish bouncy chair fixes that with quite simply the most ingenious solution: placing the ball in frame but covering it in a polyester/Spandex fabric. The result? A chair that looks cool, stays in place, and still provides the same benefits to your core and posture.