Mesh chairs are considered to be better as they let constant airflow through the chair and lets you be cool. And besides this is the fact that these chairs also give a more modern outlook to your office environment. But that's the outlook. In terms of keeping you away from any back problems. Since the mesh evenly distributes your body weight put on the backrest and spreads it around. This is which prevent you from having any pressure on your spine hips or buttocks. So, consider which is the best chair for you.