V's PJs

Hey all, picked up the game yesterday. I'm up to the point a few hours in where V is in bed after a conversation with Misty and about to have a rough time trying to sleep (hope that is spoiler free enough)

My weird thing is that I absolutely love the Pj's or lounge pants he is wearing. All I know is that it is almost kinda waffle knit style pants but can't find any sort of pants on the Internet that are similar.

Has anyone ever seen any that look the same as he is wearing in those scenes? I'd love to buy some that or even remotely similar