Nikwax Cotton Proof - 300ml Bottle Adds Durable Water Repellency; reducing weight gain and maintaining the breathability of cotton, polycotton and canvas, in wet weather. Cotton clothing absorbs considerable amounts of water. Cotton clothing can also be dangerous because when wet it has very poor insulation qualities. \"Cotton kills\" is the adage of many outdoor enthusiasts because they know that it will contribute to hypothermia in wet, cold conditions. Cotton Proof from Nikwax can add water repellency to cotton, making it safer and more usable in the outdoors. It can also be used for Cotton/Poly blended fabrics like 60/40 cloth and cotton canvas. Nikwax Cotton Proof significantly improves the performance of cotton clothing and gear that typically offer minimal protection from the elements. It is a must have for people who enjoy outdoor pursuits. Watch this short video to know more about Nikwax Cotton Proof: Features: Adds durable water repellency and revives breathability. Ideal for cotton and polycotton, combat jackets and trousers, raincoats, huntingwear, tarps and tents. Wash-in, brush-on or spray-on. Treated items dry remarkably fast . Lasts several washings. Product of choice of professional Outdoor trainers. 300ml / 10.5oz bottle is suitable for 6 items. How to use Nikwax Cotton Proof: Your cotton items could be soaking up water just because they are dirty. First, try cleaning them with Nikwax Tech Wash, and if they are fairly new, or recently re-waterproofed with Nikwax Cotton Proof, the Durable Water Repellency (DWR) will be revitalised just from cleaning. Once items have been thoroughly used, you will need to add DWR using Nikwax Cotton Proof: Washing Machine For best results always clean item(s) first with Nikwax Tech Wash in a separate wash cycle. No need to dry item(s) before waterproofing. Shake well before use. Follow care label instructions. Remove all detergent build-up from the detergent dispenser. Place clean items(s) in washing machine (maximum 3 items). Use 50ml / 1.75oz for 1 item, 100ml / 3.5oz for 2 items, and 150ml / 5.25oz for 3 items. Wash according to care label. Air dry or tumble dry on a low setting if care label allows. To maintain waterproofing always wash with Nikwax Tech Wash. Do not use detergents. Hand Wash For best results always clean item(s) first with Nikwax Tech Wash in a separate wash cycle. No need to dry item(s) before waterproofing. Shake well before use. Follow care label instructions. Use gloves (to avoid waterproofing your hands!). Immerse clean item(s) in 6L  /  203oz  hand-hot water in sink or bowl. Use 50ml / 1.75oz for 1 item and 100ml / 3.5oz for 2 items. Agitate to mix, leave to soak for 5 minutes, then agitate thoroughly. Rinse with cold water until water runs clear. Air dry or tumble dry on a low setting if care label allows. To maintain waterproofing always wash with Nikwax Tech Wash. Do not use detergents. Nikwax Product Ethics: Nikwax takes great care to minimise the effect of Nikwax waterproofing products on the environment and on you, the consumer. Nikwax waterproofing products are WaterBased, Non-aerosol, Non-flammable, Non-hazardous, and Environmentally Friendly. Zero PFC - Completely free of fluorocarbons (which have been shown to be persistent in the environment and have been associated with serious health issues). Nikwax waterproofing products contain no harmful solvents or volatile organic compounds (VOCs) Cotton Care: Cotton fabrics are breathable, absorbent and strong. They are used in the manufacture of clothing and outdoor equipment, but are not inherently water repellent. Cotton is highly absorbent and retains water, so it takes a long time to dry once wet. Therefore, it is important to ensure that cotton outer garments and equipment don’t absorb water, as this will cause them to increase in weight and will impair their breathability. To prevent cotton fabrics from absorbing water Durable Water Repellency (DWR) can be added by applying Nikwax Cotton Proof.