Ending today, Factory Direct via Rakuten offers the BestOffice Mid-Back Ergonomic Mesh Office Chair for $44.99. Coupon code "SAVE15" cuts that to $38.24. (Not a member? It's free to join.) With free shipping, that's the lowest price we could find by $3, although it was $2 less last month. It adjusts from 19" to 23" in height.