How is this even a question? Mid-forties and a perfectly ordinary height is not exactly rare or requiring of any specific, dedicated clothing.
It’s a long time ago for me … Top Shop existed then! I recall a good deal of loitering in Harvey Nichols and Selfridges and Flannels, swooping on the sales. Browns too. Zara probably. It was before I switched to 97% online - so much more available now, I probably browse about fifty stores on my phone in any week.