Features: 1.100% memory foam,5 seconds to rebound back to the original shape. , protect your spine and reduce the burden , the mesh is breathable and comfortable, and the plush is smoother and softer. :when the U hollow is in the front, more suitable for men; When the U hollow is in the back side, it is more suitable for women , improve sitting posture, relieve spinal pain
Note: Foaming small holes is a normal phenomenon and does not affect product use. Slight smell is normal, please leave it in a ventilated place for a while.