Kate Upton -- Sand in All the Right Places ... Remember These? (VIDEO)

If there's one thing the Internet knows ... it's that Kate Upton in a bikini (and sometimes out of it) is an easy win -- and the folks at Sports Illustrated just rung up another W.

Kate's been getting a ton of attention for her "Game of War" commercials, which seemingly runs during every commercial break of sporting events.

So, S.I. just wanted to remind everyone they have the hottest Upton footage on the planet ... by posting a throwback video to a 2012 photoshoot.

Thank you, S.I.