better than most but definitely room for improvement, especially when working. because I've had back issues/surgery, I pay attn to it more. Here's a good trick for the car - sit in your seat with correct posture and adjust the rear view mirror so you can see it. Then, when you slouch you won't be able to see the rear view mirror. that way, either you'll correct your posture or die in a horrible accident - either way, you and/or the world win.