Least tiresome sitting posture
Deep concave on the back
To optimize lumbar spine stretching when sitting, we have developed a bathtub with an enhanced concave curvature on the back compared to conventional models. By aligning your back along this curve, the discs in your spine can get greater elongation, effectively alleviating fatigue and bringing the most relaxing sitting posture. The relaxation of spinal discs not only enhances their health but also facilitates your energy to rebound. So, stretch it up!