Richell Paw Trax Super Absorbent Training Pads Top layer consists of a durable nonwoven fabric designed to uphold its strength when wet, thus eliminating any possibility for the fabric to fall apart Second layer consists of an absorbent sheet that quickly soaks up the moisture from the pad surface thus allowing the surface to dry much quicker Third layer consists of an advanced polymer core that works as a gel to further prevent moisture and odor Bottom layer is a polyethylene plastic sheet that blocks moisture completely to prevent it from seeping onto floor surfaces No more pet stains, no more pet odor, no more surprises