Now, we’ve got a lot of time for George Costanza, the sidekick – or, arguably, standout star – of Seinfeld, loosely based on the series’ co-creator Mr Larry David and played by Mr Jason Alexander. But he made many misguided decisions in his life. Such as killing his fiancée by scrimping on wedding stationery. And pretending to have a disability to get a job. And dramatically quitting another job after being banned from using the executive toilet, then returning on the following Monday as if nothing had happened. (Actually, maybe the last one is worth a try.) But on the extensive list of George Costanza’s erroneous judgments, being draped in velvet is up there.

Not that there’s anything wrong with that. But George’s caveat is that he would be draped in velvet if it were socially acceptable, and, in the realm of eveningwear, we’d argue it very much already is – just ask the likes of TOM FORD, SAINT LAURENT and Salle Privée, all of whom have applied this dense, tufted fabric to the tuxedo to luxurious effect. However, as a go-to material for loungewear, which is more George’s medium, velvet isn’t our top choice. Come January, when the festivities of the previous month are well and truly over and winter really hardens, all we want is to be draped in cashmere.

True, the wool of the cashmere or pashmina goat isn’t easy to come by, having to be teased from the winter down of the animal in limited quantities, which in turn makes it expensive in relation to sheep’s wool. But since it is softer, stronger and – no, not more absorbent – three times more insulating than sheep fleece, those who can afford to stray from the flock really should.

When it comes to cashmere leisurewear, the names to know range from Brunello Cucinelli, Loro Piana and The Row, the stalwarts of quietly refined clothing, to the more outlandish output of The Elder Stateman and AMIRI, labels that inject their very distinct brand of colourful Californian sunshine into this very drab month.

Below is just a selection of the cashmere goodies to arrive at MR PORTER this week, all of which would be quite at home in your front room, worn while watching a box set of Succession and admiring the stealth wealth. Or if you’re planning a Seinfeld binge to see you through a cold, dark January – we did say we had a lot of time for George. Just don’t stop with just a cashmere top half; we suggest sweatpants, too. (You could call it double-dipping.)