Curlex CL blankets consist of unique softly barbed, interlocking, curled, Aspen excelsior fibers. They are 100% free of any seeds. Curlex blankets are specifically designed to promote ideal growing conditions for seeds, while simultaneously protecting topsoil from wind and water erosion. Curlex blankets are designed with a built-in swell factor - wet curled excelsior fibers slightly expand in thickness and interlock to form a strong fiber matrix. This allows the fibers to provide intimate contact with local terrain. Water flow is trained to follow the curled fiber matrix. The roughness of the curled excelsior matrix slows the velocity to a point where gravity takes over, which allows moisture to slowly seep into the topsoil to promote ideal growing conditions. We offer a green color-coded plastic netting for applications requiring UV resistance, strength, and longevity.