Its refined, clean profile and a broad range of adjustability make EXO an ideal working chair. Choose from a full range of breathable mesh, fabric or leather finishes. Standard features TORGLIDER, a synchronous, balanced free-float torsion glide mechanism, locks in two positions. Cable-activated controls: right side lever for pneumatic height, left side lever for two-position locking free float. Easy-to-use side tension control for personalized seat and back support. NEBULA mesh backing moves with the user and allows air to pass freely, making it comfortable in all environments. Upholstered models come standard with energy-absorbing ENERSORB™ seat foam, which conforms to the body and disperses weight ergonomically. 3D armrests are height- and width-adjustable, with lockable swivel adjustment. Polyurethane arm pads add durability. The contoured lumbar support pad can be easily adjusted vertically. Five-prong heavy-duty nylon base. 2" carpet casters. Over 94% recyclable, with 35% less weight and material than comparable chair products.