Kensington - Cooling Gel Seat Cushion, Honeycomb Memory Foam Core, Coccyx Cutout, Washable Cover, Nonslip Grip - K55807WW - Black

The Kensington Cooling Gel Seat Cushion is an ergonomic seat rest that layers honeycomb memory foam beneath a cool-gel core, designed for office staff, drivers, and travelers who stay seated for long stretches. The cushion measures 18.1 inches by 14.3 inches and weighs roughly 2.95 pounds, so it drops onto a task chair, car seat, or dining chair without overhanging the frame, and a carrying strap makes it easy to move between a desk and a vehicle. Its most distinctive element is the U-shaped profile with a coccyx cutout at the rear, which removes direct contact between the tailbone and the seat pan to relieve pressure linked to sciatica and long seated shifts. The top surface uses a cooling fabric paired with the gel core, a combination Kensington reports delivers a certified decrease in body temperature during use, which helps on warm commutes and in rooms without strong air conditioning. The outer cover is removable and machine washable, so it can be cleaned on a normal laundry cycle rather than spot-treated. A high-quality silicone friction grip covers the underside and holds the cushion in place on leather, mesh, and fabric seating instead of letting it creep forward as the user shifts position. Kensington states the construction has been durability tested to hold its shape and support beyond 80,000 uses, which reflects several years of daily office seating. The cushion is finished in black to suit most chairs and interiors, ships as a single unit, and is covered by a 2-year limited warranty.