Ergonomic chairs have managed to decrease undue pressure on backs, gluteals and arms so smart selection is necessary for your seating needs. Comfort and ergonomics should top the list when shopping for modern office chairs. You spend considerable time at your desk on most days, so a comfortable, well-designed office chair is a must to avoid back pain. It's easy to see why this armless design is in demand. Multicolor patterns provide a greater opportunity for decorating with accent hues.