Textile Proof Special waterproofing for sports and functional wear. ? 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.