Twin Pack Down Wash 1 Litre Nikwax Down Proof/Downwash Direct Twin Pack 1Ltr Dwr Spray If your item is wetting out, you may need to reproof more frequently. Down Wash Direct 33.8oz / 1L | VPO Direct? For light regular use, wash with DWD 3-4 times a year and for heavier use, wash monthly. Płyn Do Prania Down Wash Direct Nikwax 300 ml | ODZIEŻ Impregnacja Product type: CLEANING AGENT , 1 l Pack of 2 Nikwax Down Proof and Down Wash Direct Twin Pack for Waterproofing and Cleaning Down Jackets Duvets and Equipment 1 Litre x2 , Brand : Nikwax Nkwax Galoschen Rengungsmttel für Schuhe Down Wash Drect/1 1 Easy To Use 2 High Performance How often do I need to re-waterproof my jacket or sleeping bag with Nikwax Down Proof? We would recommend reproofing your item at least once a year or after five to six washes in DWD. Can I machine wash my jacket? Most down jackets are machine washable but always read the care label first.