Upgraded Memory Foam Core:We have upgraded our memory foam core which keeps supportive even in extremely cold weather. Most other memory foam back cushion for office chair in the market will become hard as rock when in cold winter.

Back Pain and Muscl Tension Relief: Chair back support cushion which made of high density memory foam material features balanced softness, comfortable and supportive. Besides,the perfect ergonomic streamline design of chair back cushion fits full back body curve.So this back chair pillow provides the ultimate comfort and protection for your whole back and relieve back pain from sitting for long hours.

Elastic Strap that built in the office chair back support made of elastic material, which keep the back cushion for office chair in place from sliding down.You do not need to re-position it with an frequency.

Wide Usage: Whether you are working in your office, automobile, truck, boat or any vehicle, or travelling by train, airplane, bus or coach, this high back support for office chair will manage and improve your sitting position and comfort your back.

1 Year Guarantee:If you are not 100% satisfied, just return your back cushion for office chair within 1 year since the purchase date. Then we will send you a free replacement or give you a refund.