Nikwax Down Wash is a thoroughly safe, effective and environmentally friendly way of cleaning all your natural down insulated clothing & equipment. Down items that are cleaned regularly with Nikwax Down Wash perform better, FACT! Clean down insulates better, breathes better, is lighter & performs longer. Normal detergents leave behind a residue that attracts dirt leading to wetting out, loss of insulation & reduced water resistance. Modern Hydrophobic down, as used by Rab, must be cleaned with Nikwax Down Wash to maintain its performance. Its not just about performance, you wouldnt wear clothing that had not been washed for months, so why wear dirty clothes doing the activities you love? Think of washing and re-proofing your kit like servicing your car, you (hopefully) wouldnt expect your car to keep going forever without regular servicing, look after your kit & it will look after you. Cleans all Down filled outdoor clothing safely Maintains original water repellency Maintains breathability Machine or hand wash Unlike detergents it will not encourage wetting out Can be used to remove detergents from incorrect washing procedures Water based, environmentally friendly, non hazardous & bio-degradable