Giantex Office Guest Chair, Office Guest Conference Chair w/Lumbar Support Ergonomic Backrest[Cool and Comfortable Experience]: Experience the ultimate comfort with our cozy sitting experience. The breathable mesh back allows for air circulation, keeping you cool throughout the day and reducing discomfort caused by sitting for long periods. The slightly concave down seat, filled with high density sponge, provides extra coziness and relaxation. [Sturdy Metal Sled Base]: Our Giantex conference chair is crafted with a heavy duty metal sled base,