Aren't the clothes in the shops the product of the fashion industry? They are as near to fashion that most people get. It is a long time since I even saw the phrase 'boyfriend' used to describe clothes, if it is still in use it doesn't appear very often.
If you are talking about couture, then that is different, but what parades down the catwalk, which varies from the bizarre to semi-naked, is not what the women who are known to shop couture actually wear. That is very different, attractive, well made, expensive fabrics and in styles designed to flatter rather than reveal. Admittedly, worn by A - Z celbrities at award ceremonies they veer back to the semi-naked, but have you seen any of these styles being worn on the High Street on an everyday basis? I haven't.
Alea "wearing clothing designed to emphasise their sexuality" was merely descriptive. You describe women in their 30s and 40s, who dress attractively and look incredibly chic, and probably attract male admiration but that is very different from wearing clothes to emphasise their sexuality.
ps. skirts; Jaeger is out of my price bracket, Viyella and CC sell those drab mid-calf skirts I loathe. The Phase 8 I visited seemed only to sell dresses, I do like Phase 8, but not autumn 2015. Boden is mail order and although I visit online sites I rarely buy on line. Over 90% of the clothes I have ordered online have been sent back because of discrepancies in colour between illustration and actual garment, poor quality, or just not fitting or suiting and it is such a hassle repacking them and then finding time to get to a post office and stand in a queue or drive miles to a collection point. I did once buy a winter coat from Boden. It lasted one season, by which time it had lost its shape and had bobbled all across the front
I thought about a mini skirt, I have the legs and shape but I am in my 70s and even though I have aged well, I could only get away with it (just) if I wore it over jeggings, which wasn't what I wanted to do and I would always have felt mutton dressed as lamb. All of us have our boundaries and that was mine. Also almost all the mini skirts were aimed at young girls on small budgets. Cheap, cheerful and shoddy.