Grangers Down Wash is a powerful, yet gentle, cleaner specifically formulated to clean down and synthetic down-filled articles without damaging or inhibiting insulation and hydrophobic properties. Regular detergents should not be used when cleaning down gear as they can hinder the insulation and repellency performance by leaving chemical residues behind. The Down Wash has been specifically formulated to clean down gear without damaging the delicate material within. It comes in 100% Post- Consumer Recycled (PCR) bottle containing Ocean Waste Plastic (OWP) and is Bluesign approved.