Ergonomic design promotes healthy posture, cooling fabric with cool-gel core, premium honeycomb memory foam, anti-slip backing, machine-washable cover. Claim a free Leitz Z1000 Air Purifier when you spend over 100 on selected Kensington & Leitz Ergonomic products until 30th September 2023 Terms & Conditions apply, to claim please register online here. The Kensington Premium Cool-Gel Seat Cushion provides ultimate ergonomic comfort and support for sitting in the office, home or car. Constructed with patent pending materials, and certified for durability, the Premium Cool-Gel Seat Cushion features a durable and supportive ergonomic design that maximises comfort, promotes healthy posture, and minimises contact between the tailbone and seat cushion.