Clearstone® resin bound permeable pathway system is porous, making it highly suitable for garden paths and tree-pits and any areas which may be prone to standing water. The aggregate and resin mix has open voids across its surface, allowing air to flow freely and surface water to filter though the structure. Low maintenance and eco-friendly Clearstone Paving systems allow water to drain naturally through the surface and is tough enough to withstand high-pressure washing, this will keep the paving pristine and weed-free