Grangers clothing repelgrangers flagship waterproofer based on their fluorocarbon free technology clothing repel is a wash in formulation designed to restore and refresh the water repellent finish found on your technical outdoor clothing you may not know it but water repellent clothing and equipment need regular maintenance if theyre to continue working at their best time dust and even general wear and tear can all inhibit your garments ability to repel water washing your garments regu