Defender carpet cushion features select bonded foam to extend the life of carpets and increase comfort underfoot. Defender also provides Dual Protection to repel spills and inhibit the growth of mold, mildew, and odor-causing bacteria.Select bonded foam gives carpet a luxurious feel. Dual Protection, Moisture-resistant barrier repels spills. Fresh Dimension antimicrobial inhibits the growth of mold, mildew, and odor-causing bacteria. Extends the life of the carpet. Hypoallergenic and CRI Green Label Plus-certified for indoor air quality. 100% recycled construction, 100% recyclable, and contributes toward achieving LEED building credits. Insulates for better energy efficiency and a quieter home. Life-of-the-Carpet warranty