Is there such a thing? And am I doing it?
I turned 40 last year and I'm still wearing the same clothes I did at 30.
In some cases quite literally as I've just lost 6 stone after having two DC. 
I wear jeans. Mostly skinny either Paige Denim, 7 FAM. I do have a few 7FAM boot cut and skinny bootcut that I wear too.
Biker trousers out of All Saints
My jumper collection is huge. And features relatively clingy cashmere numbers anything from Pringle, Belstaff, Jigsaw, LK Bennett, Max Mara etc.
I have blazer type jackets and I have a leather biker style jacket from Mulberry.
Boots I have various knee high. ATM I mostly wear a mulberry pair, all saints ankle boot, Belstaff boots (bit military looking) and a pair of Uggs you could get a couple of years ago with the fluffy bit at the top which could also be turned over the knee.
I went into central London yesterday for a dental app and as I stood at station several women my age and a bit younger were staring at me.
The were dressed quite different to each other but also to me. Macs, black low heel boots (sort of M&S looking a bit safe looking) one in wide leg jeans other two in boot cut and all with tunic floral type tops.
I am a bit mutton???
I also have my midlife crisis pair of all saints biker leather trousers.
Pic on profile of those.
Sorry long phew. Thanks for reading.
Pls let me know as I suddenly felt perhaps I need to review my wardrobe.
I won't be offended at all so good honest MN type opinions pls. 