About 2 years ago, I was looking for a racing car seat, chair, and at the time there wasn't that many to choose from, they were either silly money around £3-£400, or EBay specials for about £80. But after a lot of searching I came across FK Automotive, in Germany, and at the time they had 1 model, in different colour panels, and stitching, they were £175, to me still a bit pricey, for an office chair, but I thought sod it, I sit there about 8ish hours a day, and deserve something comfy to sit on. It came to the UK within 4 days, and was the best investment ever, it makes all other chairs, feel like sitting on a park bench.
I'll get to the point now, so last week, I forgot I had a screwdriver in my back pocket, and when I got up, it tore into, the side of the chair, making a nice big gash about 3 inches long, it done a great job, of it to be fair.
So I went about Google' ing, " FK Automotive chairs " Only to find they have a huge range of about 50 or so, in different styles, colours, and materials, and their prices are great, starting at £50 ranging up to £180. I can't vouch for the lower end models, but if they are anything like mine the " Detroit in black with red stitching" none of them should disappoint.
http://www.carparts-tuning.co.uk/en/Sport-seats-belts/Sport-Seat-Office-Chairs/