Come and see our amazing products. The ergonomic curve design and the curved support design of the legs can promote blood circulation in all parts of the body and support the body evenly and comfortably. The mesh in the middle is airy and breathable. Sweat will not wet your clothes, and it providing an excellent feeling of your back. The elderly can also use it easy, you don't "fall in and get swallowed" as much as other versions and it is easier to get in and out of as well. Pls confirm further with us if any query about packing info, inventory status and time schedule.