Down Proof adds a DWR (Durable Water Repellency) finish to the down and outer fabrics of your down garments. First wash with Down Wash Direct, then re-wash the garment using Down Proof (no need to dry garment first). Shake the bottle well, add 150ml into the detergent dispenser (do one item at a time). Run the 30C synthetic cycle and slow spin. When it's finished, run multiple spin cycles incrementally increasing speeds to remove excess water. Tumble dry your item until clumps have disappeared.