I've just invested in the most expensive pair of jeans I've ever bought - a pair of paige skyline skinnies at £185. They fit me perfectly when new, and I asked the shop assistant who assured me they wouldn't stretch (a claim also made on the label). I carefully checked the care label before washing them and meant to wash them at 30 (they say cold wash so I thought that would be OK?) but stupidly in my sleep deprived state set the dial on the machine to 40 by mistake. Now they seem to have grown a bit round the waist, seem saggier at the knees, and aren't feeling so much like a second skin. Do you think I have made them stretch by washing too hot or should I have sized down? If the former, is there anything I can do about it?! Thanks in advance!