Very narrow towards the back of the seat, unfortunately I didn’t open the box till after 30 day window due to move-in date being pushed back. And I wish I had because this chair is horrific the weights that they give you is at the edge and not towards the back and it tapers drastically so if you have any hips whatsoever even a size 4 will feel tight in the back of the chair you can’t lean back comfortably. don’t buy!