TKOOFN Expandable Polyethylene Stuffed Chair Pad [13.7x13.7inch] Soft Seat Cushion Machine Washable (package of 1, Red) Chair pad: 100 % cotton. Filling material: 100% Expandable Polyethylene. Machine washable for easy care. Easily keep the chair pad in place. The chair cushion has two identical sides so it can be turned over for even wear.