My walking jacket (berghaus) must be about 15 years old so it's lasted well I guess but frustratingly even when I re-waterproof it with the nikwax wash-in stuff, it doesn't seem very waterproof any more. Is this just what happens eventually?! Is there something else I can do to make it properly waterproof again?
If not, is there a different type/brand of coat i can buy that will stay waterproof? I'm hopeful of having a few decades of hiking in me still and would like to avoid repeatedly replacing a coat if that's possible?!