【2024 Upgraded Gel Cushion】 This gel cushion uses recyclable, environmentally friendly hydrogel (thermoplastic elastomer), which is highly elastic, flexible, durable, and energy-saving. It combines a honeycomb structure with a U-shaped design, providing excellent breathability and the advantage of not getting tired even after sitting for long periods. It is ideal for office chairs, long-distance driving, pregnant women, wheelchairs, and more. 【Excellent Breathability & No Stuffiness】 The hollow design provides excellent breathability, allowing air to circulate. Even if you sit for long periods in the summer, your buttocks won't stick to your pants due to sweat! You can feel cool the moment you sit down. It effectively disperses heat and helps to lower the temperature. It's a non-stuffing type, perfect for dealing with the summer heat, even during long hours of sitting work! 【Ergonomic U-Shaped Seat Cushion & Big Size】 The high-quality TPE material and double honeycomb structure support the weight of the upper body and distribute pressure, supporting the lower back. The U-shaped design at the back of the cushion disperses the load on the coccyx, so you won't feel tired even after sitting for long periods. The extra-large size (46*44 cm) can wrap your buttocks and thighs, providing more comfort than the regular size (41×36 cm). 【Super Soft & Low-Rebound Cushion】 This gel cushion has a unique double structure that combines flexibility and elasticity. Even if you press or twist it with strong force, it will immediately return to its original shape, and it also has excellent durability. The surface of the cushion has approximately 2000 pressure-reducing gels arranged in a honeycomb structure, effectively distributing weight. The thin TPE gel cushion, about 3cm thick, does not affect your field of vision even when driving. 【Comes with 2 Washable Cushion Covers & Suitable for All Seasons】 Two covers are included, allowing you to switch them out. The covers are easily removable and washable. The back of the cover has non-slip particles, allowing it to be used on chairs made of various materials (wood, plastic, mesh fabric, PU leather, genuine leather, etc.). It can be used in various places such as at home, on chairs, in the office, in the driver's seat, on wheelchairs, and on dining chairs. Recommended for those who drive long distances, office workers, students preparing for exams, pregnant/postpartum women, and the elderly!