Thanks for your replies

I should have clarified that my mum basically drowned them in softener! She uses loads!! The water is beading off the fleece and the inners, I have to push (literally! PUSH!) the liquid into the inners with my finger, it won't sink in at all the water just sits there.
I've tried washing up liquid on my outers (didn't want to put them through any more stress by using vinegar) but it didn't seem to work, although water will sink through the outers easier than the inners. Should I scrub them both with fairy and leave them over night?!
I know I can sort the outers, a quick go in the tumble drier will sort the velcro (which is so unsticky it's infuriating!) but the inners seem to be so water proofed I'm concerned that that's it, I'll just have to replace them (which I can't afford to do!) Woe is me!
I'm actually boil washing them now so when they're dry tomorrow I'll attack them with fairy!