Leaders Executive Office Chair Fabric: Synthetic Leather Fully adjustable dual backrests to fit perfectly for most body size Ergonomic adjustable headrest &amp; Pneumatic seat height adjustable for individual fit Adjustable tilt, tilt tension, and tilt lock, Height/Width adjustable, and removable Armrests Triple Y 6 Leg-Base for better stability when reclined Cal 117 Compliant &amp; Meets or exceeds all U.S. home office furniture industry standards (ANSI/BIFMA)