- Whether you're gaming, working or just scrolling, the Acer Predator Rift Pro has your back with its high-density foam seat - Pop on the magnetic head pillow and lumbar cushions when you need that extra bit of support - You can adjust the height, tilt the backrest or move the 4D armrests to get things feeling just right - If you need a breather but don't want to leave your chair, recline it up to 160 degrees and relax - With a solid steel frame that supports up to 170 kg, it's built to last through every win or loss