Breathable mesh back. Height adjustable back and armrests. 3.5 in. thick padded vinyl seat. Pneumatic height adjustment. Passive lumbar support. Tilt tension and tilt lock. Five hooded dual-caster wheels. Made from nylon, PU and foam. Seat: 20 in. W x 18.5 in. D x 18 in. - 22 in. H. Overall: 25 in. W x 21 in. D x 37.5 in. - 40 in. H. Mark a turning point in your office tasks with this upright and ergonomic office chair. Let the breathable back and seat serve as a simple extension to your everyday home and business ventures. The back height and seat depth are both easily adjustable to fit your height and size, while two sturdy armrests height adjust to assist your vertical seat posturing. Fitted with, give yourself the ability to easily glide over carpeted floors while naturally performing tasks without exertion.