Ergonomic Mesh Office Chair Black Height Adjustable 2 PackBoost focus and comfort with a breathable, ergonomic mesh chairnow offered as a 2 pack for home and office use. This mid back swivel desk chair blends support, durability, and practical design to enhance your workday from morning at the desk to late night tasks. Key benefits at a glance Breathable mid back mesh: promotes airflow, helping regulate heat and moisture while supporting the natural curve of your spine. Adjustable seat height: customize from