As in not expensive pieces but things from Primark - and even C&A, New Look etc, that you paid peanuts for and have lasted forever.
I got rid of some old C&A stuff last year when I had a clear out but I have 2 towelling, knee length, hooded robes bought in Sheffield in the latish 90s. One blue, one white. The white one stays in my guest room (and my sister uses it half a dozen times a year) but I have used the blue one daily every spring and autumn for over 20 years now. It's a bit faded but still perfectly serviceable. Also random PJs over the last 20 years that I still wear but nothing else as old that is still in regular use.
Can you beat it? 