Grangers are a technology-based company specialising in cleaning and waterproofing products that protect and restore your outdoor gear Established in 1937, they became the first company to produce environment-friendly water-based waterproofing. Their principle of producing ecologically sound, high performance treatments continues to this day. In Trail Magazine's 2006 tests undertaken by Leeds University Performance Clothing Research Group, Granger's products came out top in performance and durability. That's because Granger's proofing technologies replicate the water-repellency applied by fabric manufacturers, so using Granger's just restores the original treatment.
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