Memory Foam Seat Cushions: Ultimate Comfort for Long Sitting Hours Transform your sitting experience with our Memory Foam Seat Cushions, designed specifically for office chairs and cars. Features: - Posture Corrector: Our ergonomic double U-shaped design features a lower front and higher back, promoting proper posture. The higher back supports your lower body, redistributing weight to prevent numbness in the legs during extended sitting. - Breathable & Light: Crafted from mesh fabric with ventilation holes, our cushion allows for sweat evaporation, keeping you cool and fresh even on hot summer daysan advantage over typical seat cushions. - Pain Relief: The innovative design includes seven targeted functional zones that provide tailored support to your buttocks, tailbone, and legs. This effectively alleviates pressure and has been tested for long-term relief from back pain, sciatica, disc herniation, and coccyx injuries. - Versatile and Portable: Measuring 17.7" x 15.35" x 3.54", this cushion fits most chairs, making it ideal for use as a car seat cushion, desk chair cushion, gaming chair cushion, or wheelchair cushion. It's a thoughtful gift for parents, friends, teachers, and colleagues.