ANARCHY OUTDOORS CAPARISON CHEEK PIECE PADS UNIVERSAL Anarchy Outdoors' Caparison Cheek Piece Pads use a blended EPDM foam. The foam gets precision laser cut for the perfect fit, feel, and function. This combination of foam blends three types: EPDM, neoprene, and SBR, to create a high-quality general-purpose foam. This EPDM blended foam offers superior resistance to water and wear. This resistance comes from its closed-cell construction, helping the foam restrict water, air, and gas absorption. They recommend a couple of dry runs before installing the foam pad. Once installed, the cheek pad is difficult to remove in one piece. Mfg: Anarchy Outdoors