This is a kind of fine quality memory foam cushion, ergonomic and humanized design, soft, skin-friendly and breathe freely, comfortable and safe for your body. Memory foam inner core with slow rebound, soft hydrogel surface, mesh fabric outcase beautiful and cool. Equipped with zipper for easy removal and washing, and will not hurt your delicate skin by accident. You can have a try.   Features: Ergonomic and humanized design, soft, skin-friendly and breathe freely, comfortable and safe for your body.  Memory foam inner core with slow rebound, soft hydrogel surface, mesh fabric outcase beautiful and cool.  Equipped with zipper for easy removal and washing, and will not hurt your delicate skin by accident.  Fine quality elastic band, with buckle design, easy to fix on your seat, no move and no shift.  Cushion impact force, support your waist, healthy and safe, no harm to human body.  4 colors for you to choose: you can choose according to your demands.  Perfect for office, car driving, traveling, home use and etc.  Note: The inner core should be stored at cool, dry and ventilated place.   Specifications: Name: Waist Cushion;  Material: Memory Foam;  Color: black, blue, coffee, rose red (optional);  Item size: 340 * 320 * 120mm / 13.39 * 12.60 * 4.72in;  Item weight: 750g / 1.65lb;  Package size: 340 * 320 * 120mm / 13.39 * 12.60 * 4.72in;  Package weight: 750g / 1.65lb;   Package list: 1 * Waist Cushion