kinnies may be in fashion, but so are boy jeans. If you are not dissimilar in size, you could wear your man's jeans too. Team with a little vest to show off some curves, and a few layered necklaces.
The biggest look for Summer / Autumn though, is the grandad cardigan, preferably in grey, long and with pockets. So buy your man one, and then steal it! If you don't have a man, then buy one anyway, and you won't have to share it!