Steel frame construction. I would recommend this chair and buy it again.

Got the grey one for my formula chair that has served me for years and has a few stains and small tears. I love the chair so much I didn’t want to get a new one. I really appreciate that DXR makes this product so that I can continue to keep this chair for a few more years while still looking brand new. Cover felt nicely made, easy to put together and I like the color. It fits really good to the chair which I was concerned about since my chair is so old.

I think the price is very reasonable. I've seen chairs that cost twice or three times more than this and can't compete with this one. Clear buying advice.