Here at Bradshaws Direct we have introduced a price match so you can buy with complete confidence. Have you seen Polyfibrelay Underlay cheaper elsewhere? Give us a call & we will match that price. Exclusive to Bradshaws Polyfibrelay is a thick soft material that won't rot & will last a lifetime. Designed to protect the liner from small stones or other sharp items in the soil it's also good at protecting against root penetration. If you have stony ground then we recommend Polyfibrelay. Polyfibrelay is sold in sizes which compliment the Polyex Liners. So for example if you have a 6m x 5m liner simply choose the same size for your underlay.