Nikwax Down Proof - If the outer fabric absorbs water, the garment can lose up to 70% of its breathability and insulation. Therefore, the Durable Water Repellency (DWR) on the outer fabric of your down jacket must be maintained to ensure comfort. It will eventually wear off and need to be renewed with Nikwax Down Proof™.
Nikwax Down Proof™ Wash-In is easy and quick to apply in a washing machine, and its highly Durable Water Repellency (DWR) develops on air drying. The washing machine application ensures that the treatment goes right through the garment, treating seams, tapes and cords, as well as the fabric. Also, as the need for tumble drying is removed, this saves energy and protects more vulnerable, older, garments from heat. Nikwax Down Proof™ Wash-In has been specifically designed and optimised for down garments; it leaves a flexible water repellent treatment on individual fibres allowing moisture vapour to pass through, maintaining breathability.