I don’t know about European manufactured, but the kind of socks your describing - normal black socks, without a seam - in Germany are called “Kellner socken” - waiter socks. Light, seamless, comfy usually black tie socks, not too expensive.

So now he thinks he can make demands extraterritoriality

To quote the grandmother of a friend: “Wish into one hand and shit into the other, see which one is filled first”

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But Tesa gaffer tape is shit.

At least in a professional setting it is frowned upon because it leaves a lot of glue residue on floors and cables, which is a pain in the ass to clean.

Gerband is also German and the way better product, at least regarding gaffers tape.