Leather Executive Chair

The seat is very comfortable, you can spend hours sitting on it without your butt hurting. The seat is flat, so you can spread your legs without fearing that the sides will hurt, like in typical gamer chairs. The only drawback, if there is one, is that the backrest is somewhat hard, and until you get used to it, it gets weird. Once you get used to it and find the right lumbar position, it's very comfortable.