I am quite surprised at how many clothes do not make it past the sorting .Staff pick over the goods, retaining the better items for sale in the shops, and rejecting the rest... .ie unfashionable - eg colour, pattern, style or material (such as nylon ,lycra, polyester] ..i recently donated this excact skirt ,in perfect condition , only worn twice ,only to find 1 week later it failed the sorting ,due to it been Cheap to buy from new , fabric ,polyester , so shop could not sell it ..therefore it was bagged up for rags ...seems like such a waste.