Restore the original look of your waxed cotton garments with Grangers Fabsil Wax Cotton Proofer Spray. Suitable for use on your favorite Barbour jacket or any other waxed cotton garment, the spray refreshes and replenishes your clothings water-repellent finish. Simply spray on and leave to dry naturally. Drying may take up to several days. Per 7 oz. Type: Clothing Care.