Sea to Summit
You want your jacket to perform in a torrential downpour, this is why you need Clothing Repel. Clothing Repel is a PFC-free, bluesign approved, durable waterproofing treatment, formulated to keep your gear dry. By popping this beauty into the washing machine drawer, all your gear will be water-repellent once more. That means, if you get caught out in the rain, it's no problem at all, you can stop and have a dance rather than panicking and running for cover because #withgrangersyoucan.