I would suggest just going to a few stores and trying different styles out. I got mine at Office Max a couple of years ago. Height adjusts, tilt adjusts, armrests adjust, it has great lumbar support and a five-wheel base. The wheels are covered so it's harder for thread snips to get caught and wound up in them. The chair itself is covered in some polyester micro-fiber fabric that mostly wipes clean but is cool to sit in during hot, humid Alabama summers. I think I paid about $150 for it, on sale. The dinosaur I had been using for over 20 years just wasn't cutting it any more, not to mention it weighed a gazillion pounds and was seriously ugly. My new chair was one of the best investments I've made for my sewing room. Take your time and consider it an investment in your back. You won't regret purchasing a good chair.