L eather trousers are not for the fainthearted. They come with … baggage? Mythology, perhaps, is a gentler way of putting it. Either way, you know what I mean. Leather trousers can be suggestive of pelvic-thrusting rock frontmen. Noisy motorbikes. They hint at midlife crisis or teenage rebellion. They are a lot . But leather trousers – along with gym clothes in public and cancelling plans at the last minute – have been normalised in polite society. There is a new breed of leather trouser-wearer. You know who I mean: she looks as if she could be an architect, perhaps. She is chic and understated (neutral colours, not too much jewellery) and she’s wearing a nice pair of trousers that just happen to be leather, rather than wearing leather trousers in a let’s-get-the-shots-in kind of way. Again, if you know what I mean. The thing is, when you get them right, leather trousers have a kind of magic. They have the power to make you look just that tiny bit cooler than everyone else in the room.…