I purchased this cushion on Amazon. It’s thin, very comfortable and since it is a honeycomb design, the ventilated seats work great.
Amazon.com: Extra Large Gel Seat Cushion Pillow for Long Sitting – Enhanced Office Chair Car Egg Seat Cushion with Non-Slip Cover for Back, Coccyx & Tailbone Pain Relief Pad - Computer Desk Pain Relief Pad : Office Products
Buy Extra Large Gel Seat Cushion Pillow for Long Sitting – Enhanced Office Chair Car Egg Seat Cushion with Non-Slip Cover for Back, Coccyx & Tailbone Pain Relief Pad - Computer Desk Pain Relief Pad: Back & Seat Cushions - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
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