DALTEX-1040-15 Daltex 15' x 360' 4oz Nonwoven Fabric is a professional grade fabric used for dewatering and run-off protection. This item can also be used to prevent the mixing of soil with aggregate, to keep out debris and maintain water flow, and behind retaining walls and under walkways. For best results, use on landscaped slopes to reduce runoff and keep decorative material in place.