NIKWAX COTTON PROOF WASH IN 300MlHigh performance waterproofer designed to enhance the performance of wet weather cotton and polycotton items. Easy to use in the washing machine or by hand, non flammable and PFC free.For waterproofing cotton.Easy to use wash-in waterproofing for all cotton, polycotton, canvas clothing and equipmentAdds water repellency, revives breathability and reduces water absorbencyEnhances the performance of your gear, keeping you warmer and drierRecommended for all cotton and polycotton clothing and gearHow to use: Machine Wash / Handwash / Sponge on / Brush onSuitable for: Jackets / Trousers / Rucksacks / Tents