A sewer needs a chair that is adjustable in many ways. This includes the seat height, the back height, and the back tilt. It should be sturdy, with five casters on the bottom to add stability as you roll. A sewer rarely needs chair arms, so it should have none or arms that can be moved out of the way while you’re working. Most importantly, a sewing chair needs to be comfortable, with a padded seat and a supportive backrest.