Perhaps Lando left a set of clothes when he gave the Falcon to Han, so Han has actually been wearing Lando's clothes. Or maybe it's like when someone comes back from somewhere like Thailand with a load of fake designer goods and everybody in your neighbourhood is walking around with the same T-Shirt. Personally, I like to think that Chewbacca forced Lando to wear Hans clothes.
Originally posted by steverules_2
So he started throttling him around the neck and then watched whilst lando got undressed...that sick pervetted wookie, sitting there in his rocking chair with his beer whilst watching Lando get changed ❌
He most likely would have had his Bowcaster trained on him as well.