Seat Lifts and Separates Bum Cheeks - Ayur Chair

I get it. Ergonomics means good for the body. But what about the eyes? The Ayur Chair says it provides great lumbar support while it lifts and separates your butt cheeks for comport. Lifts and separates? OK, for guys I understand a little separation is a good thing. And OK, women can sit spread eagle too, I guess. This has to be really good for the back, because from a design persepctive, the aesthetics sure look odd!