In "Back to the Future" ( 1985) Lorraine calls Marty McFly as Calving Klein because of the underwear. In that year CK wasn't famous outside the US, thus they changed it to
The Untold Truth Of Marty McFly
1) Michael J. Fox as Marty Mcfly | Handsome Men | Pinterest
Great Scott 2015 the Future has been and gone…..But what happened in the Past ? — SANDSTONE Productions
Evian Christ to sell 500 pairs of underwear with his name on them | Music News | Tiny Mix Tapes
Back to the Future Plot Hole Explained - Why Don't Marty's Parents Remember Him?
my new plaid pants: Good Morning, Marty McFly
Marty Mcfly inspired outfit" by livethe80s ❤ liked on Polyvore featuring MICHAEL Michael Kors, rag & bone/J… | Calvin klein underwear, Outfit inspirations, Outfits
Great Scott 2015 the Future has been and gone…..But what happened in the Past ? — SANDSTONE Productions
Marty McFly | Futurepedia | Fandom
In Search of Calvin Marty Klein | Futurepedia | Fandom