These pads make the ideal filler for baby crib bumpers. They are flame retardant, cut-to-size, and include a pattern from "Possibilities" authors of the "P.S. I Love You" series of nursery design books. Flame Retardant. Will Not Yellow. Will Not Disintegrate. Resists Mildew. 100% Polyester. Washable. Non-Allergenic. A safe alternative to foam. NU-Foam ® is a cushion made of compressed layers of polyester (NOT Polyurethane).