Foam/Mesh/Plastic/Plywood/Polyurethane HIGH-BACK SWIVEL GAMING CHAIR: Provides the perfect balance of ergonomic comfort and optimal lumbar support to keep up with the demands of your marathon gaming sessions ERGONOMIC RACING STYLE: High-back racing style with an integrated headrest and waterfall seat will reinforce healthy posture to reduce back strain and muscle fatigue, and the generous LeatherSoft padding and a wing style back will cradle your torso PADDED FLIP-UP ARMS: Padded arms provide a comfortable spot to rest your arms while holding your controller to relieve pressure off your shoulders and neck, and the arms flip backward so you can easily pull yourself underneath the desk HIGHLY CUSTOMIZABLE SEATING: Pneumatic seat height adjustment lever makes it easy to raise and lower the seat; Tilt lock/tilt tension adjustment allows you to rock or recline or lock the seat in place; Dual wheel casters make it easy to move around PRODUCT MEASUREMENTS: Overall Size: 24.75"W x 26.25"D x 42.25-46.25"H; Seat Size: 20"W x 19"D x 18-22"H; Back Size: 19"W x 25.75"H; Arm Size: 27.5-31.5"H from floor; 9"H from seat; Assembles quickly with included tools and step-by-step instructions