Hippo Sak® Ocean Plastic Pet Bags are made from Recycled Ocean Plastic collected off the beaches in developing nations BEFORE it gets into the ocean, minimizing pollution at the source. So now you can clean up after your pet while keeping our oceans clean! Our bags are odor and leak-proof thanks to our Hippo Strong 8-layer bottom seam. Once tied, our bags keep in any odor and mess your pet leaves behind. It’s a jumbo pet bag for large dogs and cat litter scooping.