Cleans and revitalises insulation and restores the water repellency of hydrophobic down clothing and sleeping bags.  It will also improve the water repellency of regular (untreated) down and maintain the water resistance of the down items outer fabric.

Dirt attracts water and conventional household laundry detergents attract hydrophilic residues leading to the Durable Water Repellency or DWR of the fabric and down becoming compromised and therefore wetting out.