Grangers 2-in-1 Clothing Wash and Repel 300ml is a bluesign® approved solution formulated to clean and reproof in one wash cycle. This detergent-based product gently removes dirt and odours while restoring the DWR finish of all technical garments. It is used in place of normal washing detergent and requires less time, energy, and water, while still providing superior protection. Heat activation is recommended but not necessary with this product.