So I've lost some weight and need to update my wardrobe. I'm going back to work soon after a year on maternity and need some decent trousers for work. Smart, straightish cut I guess. Definitely not flappy at the bottom. I'm quite short 5'5, wear both heels and flats and a 12-14 depending on the shop. I'm looking for a black pair and a grey pair. Machine washable. Help me please?!