Why Mesh ChairWhy is an ergonomically designed task chair with distinctive, contemporary style. Whys back is formed from high performance polymer that adjusters ti the users movement. The unique contoured height adjustable backrest ensures pelvic and lumbar support with the perforated back aiding in ventilation. Why has been designed to minimize the number of materials and components used in construction and is 98 % recyclable. Why ensures a long life span 10 year