La-Z-Boy Mesh Mid-back Chair - Mid Back - Black - 1 Each Mid-back chair features a comfortable mesh seat and back to help you stay cool throughout your day. Built-in lumbar support helps keep your spine properly aligned to prevent back strain. Pneumatic lift and tilt adjustment allow you to create a personalized feel to meet your preferred comfort settings. Oversized casters roll smoothly for effortless movements. Chair is designed to provide a 300 lb. weight capacity.