It consists of high quality polyurethane foam core with durable outer shell. Breathable 4D mesh cover, cool and not stuffy. Provides maximum seating comfort, while ensuring optimal upright posture. The seat cushion with backrest has a hidden zipper, so that the pillowcase can be easily removed and washed by hand or in the washing machine. Equipped with adjustable strap for easy attachment to the seat. The bottom has non-slip particles, which are not easy to move and adhere firmly to the seat. TOP QUALITY: ergonomic seat cushion provides an ideal sitting position. What’s more, sitting on a wedge cushion, thanks to our breathable 4D mesh cover, you will feel constant cooling. Our ergonomic seat cushion consists of a high quality foam core made of shape memory polyurethane foam and a durable outer shell. Removable zippered cover. Super comfortable seat: seat cushion provides maximum seating comfort while ensuring optimal upright posture - absolutely beneficial for you and your back. Put the wedge cushion – the higher side on the back – on the chair and you’re done! REPLACEABLE, WASHABLE COVER: The seat cushion with backrest has a hidden zipper, so that the pillowcase can be easily removed and washed by hand or in the washing machine. Many uses: Ideally suited on an office chair in an office, dining chair or wheelchair. Thanks to the practical non-slip base it does not slip. This means that it is not only multi-site people who benefit from it. The pillow can be easily moved thanks to the carrying handle. Specification: Material: polyester Color: Black Size: 47x42x8cm Package includes: 1x seat cushion