QEP Cork Plus Underlayment is an environmentally friendly product made up of cork, a renewable resource, and recycled EVA foam. This cork underlayment is naturally hypoallergenic, mold, and mildew resistant. Cork Plus Underlayment delivers superior acoustical performance to standard cork, plus it is more flexible and less likely to break during installation. The recycled EVA foam is unused material generated in the production of shoes, which reduces the disposal of this non-degrading material into landfills. QEP Cork Plus products are intended for indoor, commercial use and may contribute towards satisfying credits under the LEED Green Building Program.