Hi, I have two bibs I got from Sainsburys that are made of PEVA (floppy plastic stuff) with a polycotton trim. Label says sponge clean only. I've been cleaning them in a bowl of hot soapy washing up water, but one of them has gotten rather smelly and this method doesn't get rid of the smell. I think it might be the polycotton trim that has got a bit manky and wet and then not dried quickly enough too many times. Any ideas how I can give them a good clean and get rid of the smell?