Dewitt Company Weed Barrier 12 YearControl weeds before they start. Fabricated using a spun bond method, which sandwiches melt blown material, forming a powerful 3 ply layer of weed protection. High carbon black content provides superior light blocking capabilities to protect against the toughest perennial weeds. Design prevents unraveling and makes the material easier to cut. Hydrophilic treated, providing improved water and nutrient flow through the fabric.