HOLMENKOL Textile Proof suitable for membrane textiles (e.g. GORE-TEX®)*, synthetic fillers (e.g. Thinsulate, Thermolite, Primaloft) and elastic fabrics (e.g. soft shell, fleece). Preserves their breathability. Strongly water and dirt repellent Lotus effect. Various applications, e.g., for backpacks, tents. Simple handling: spray on and allow to dry. That‘s all.