Breathability and heat dissipation: Our Blue seat cushion has a therapeutic thick honeycomb gel design, and the built-in free-flowing air channel for ultimate cooling comfort to prevent seat sweat and a ventilated mesh cover that does not get hot, unlike the memory foam models. Gel seat cushion size is 14.17x11.8x1.37Inch, weight about 2.6lb.Double layer gel cushion design. Our cushion Effectively prevent and alleviate various pain symptoms, including lower back, sciatic nerve, tailbone pain relief, coccyx, degenerative disc disease, butt and hip pain. Our egg seat cushion has an ergonomic design to help avoid numbness in the buttock’s muscles and lumbar strain. The gel seat cushion for long sitting adopts a thickened double-layer honeycomb design, which has good elasticity and can make your seat softer. It does not broken even if you put an egg and sit down. It helps improve posture, adapts to the contours of your body to create a truly customized fit. It has a very good constant temperature, which can provide you with a cooler seat in the hot summer. It restores to its original shape as soon as it is stretched and squeezed. Our gel seat pad can also be used while bathing, swimming, boating, kayaking, kneeling while gardening, or on outdoor patio chairs. The zippered removable, black MESH COVER is MACHINE WASHABLE for easy cleaning. The gel cushion includes a textured bottom cover to ensure minimal to no movement in most seat. This seat cushion is great for Office, Computer Desk, Home, Patio, Couch, Recliner, Wheelchair, Stadium seating, Picnics, Car, Truck, Airplane Travel,Outdoor Activities. Ideal for post-surgery, hemorrhoids, back pain, leg pain, sciatica, or any time extra seating comfort is needed. Suitable gifts for family, friends and colleagues. This gel seat cushion made of premium gel material. It adopts more than 500 flexible honeycomb grid design, this unique honeycomb cooling structure greatly reduces heat transfer between the buttocks and the seat, keep cool at the bottom for sedentary.