Shade cloth acts as a 3D knitted mesh that maintains a gap between the vacuum bag and the laminate, allowing air or resin to flow through. Some professional infusion meshes are essentially high-grade 3D knitted PE "shade cloth". Knitted shade cloth typically feeds resin along its knitted lines rather than in all directions like diamond-patterned mesh. It is often described as a "slower flow" option. 30% shade cloth is the most economical and effective grade for flow media. 1.83 mtrs wide x various lengths