Foam, Mesh, Metal, Plastic Made in USA or Imported MID-BACK SWIVEL OFFICE CHAIR: Designed to keep you comfortable and supported all day, making it perfect for use in front offices, executive suites, at-home work desks, college dorm rooms, student study spaces, or just about anywhere MESH BACK AND LUMBAR SUPPORT: Breathable, ventilated mesh back allows air to circulate to keep you cool during long work days, while the built-in lumbar support helps prevent back strain and muscle fatigue ARMRESTS AND PADDED SEAT: T-shaped arms help relieve pressure from your neck and shoulders, and the seat is generously padded with CAL 117 fire retardant foam and covered with black mesh upholstery HIGHLY CUSTOMIZABLE SEATING: Features a pneumatic height adjustable 360-degree swivel seat to create a comfortable, custom seating experience for all body types EASY TO ASSEMBLE: Measures 24"W x 21"D x 34.25-39"H and can be assembled quickly with the included tools and step-by-step instructions