Filling: Memory cotton Material: 3D Mesh Cover Features 1: Machine-washable Mesh Cover Features 2: fits perfectly on any office chair, computer chair Features 3: fits gaming chair, executive chair, sofa, couch Features 4: car seat, SUV seats, truck seats, wheelchair Features 5: recliner seat, also good for trains Features 6: Firm Memory Foam Features 7: Breathable Knitted Inner Cover Features 8: Washable 3D-Mesh Outer Cover Features 9: Reading Lower Sciatica with Adjustable Straps