It is important that high performance clothing gets regular treatment to maintain its waterproof qualities and durability. Although both Barbour and Hunter offer their own products here for this vital service, they both approve NikWax’s extensive range of treatments which cover virtually every item of knitwear, outerwear and footwear. NikWax carries many accolades and testimonials from adventurers and explorers worldwide and no finer outerwear treatment exists.