Ideal primary ingredients The greatest coating available today is PU Leather, and Fantech has chosen the greatest varieties. PU leather is soft, waterproof, and incredibly durable. We pair it with a blend of Precision-cut Cold-Cure Foam, which offers ideal support and cushioning for a comfortable sitting position. Recline in the Backrest If you're growing weary from gaming, put down your chair. Two-dimensional armrest You can personalize the armrest's height. Hydraulic pistons of class four Updated to accommodate a wider range of user heights, the ALPHA GC181's Class 4 Hydraulic Piston length is the best in class in terms of consistency, stability, and safety. By doing so, you can avoid dangling feet, which can lower blood circulation, and maintain your feet flat on the floor.