Office Star 1857752 Space Air Grid Executive High-Back Chair, Air Grid Back/Leather Seat Luxurious, two-layer leather seat for plush comfort. Breathable Air Grid back offers smooth, strong support. 2-to-1 Synchro-Tilt adjusts back and seat angles simultaneously. Soft polyurethane padded arms for enhanced comfort. Heavy-duty five-star base has dual-casters for mobility.