I purchased Swift X years ago, when the model was newly released. But always having problem with the lumbar support provided. Thus I bought variety of lumbar support but yet still not satisfied until I notice the promotion on this website. Give the benefit of the the doubt, I purchased this model and really can't wait to receive it. I really really satisfied with the purchased. This is the lumbar support I'm looking for. Now I can seat on the chair without hurting my back. Very glad to have it.