Get Extra Cool and Quiet Comfort with DynaPad. DynaPad is a heavy, 3/8″ thick, one pound per square foot floor mat, with a four layer composite barrier utilizing “Dissimilar Layer Insulating” technology that solves two of the most difficult automotive problems: exhaust system heat and low frequency noise. DynaPad has a heavy duty vinyl barrier between two layers of acoustic “sound soaker” foam, covered by an oil and water resisting poly facing. It is used under the vehicle’s carpet as the ultimate carpet pad upgrade.