Cotton isn't usually a material we'd recommend using in the outdoors, but there are some exceptions, such as canvas clothing and equipment. If you own such items and do want to improve their water-repellency, use Nikwax Cotton Proof. It's a wash-in treatment - just stick it in the washing machine. We recommend you clean the clothes first with .
Item | Nikwax Cotton Proof |
Best use | Outdoor Cotton Clothes; Canvas; Polycotton |
Volume | 300 ml |