In the original 2020 BMW Motorrad RIDE Catalogue you find some information. Here you can do a download: https://www.bmw-motorrad.com.au/en/wear/ride.html#/filter-all There you'll find this: Functional washing detergent, 250ml For high-quality BMW Motorrad clothing, outdoor apparel and sportswear, and microfbre fabrics. Especially suitable for suits with membrane technologies (as either laminate, liner or insert), which retain their water and wind-repellency and breathability even after multiple washes. Waterproofng agent for motorcycle clothing, 300ml Water and oil-repellent, for large fabric surfaces made out of natural and synthetic fbres. The agent wraps the fbre in an invisible, hydrophobic monomolecular flm.