Jay Cutler must’ve gotten all of Kristin Cavallari’s bikini tops in the divorce … ’cause his ex just posed for a flaming-hot topless pic on a boat!!

It’s clear, the single life looks great on the 33-year-old reality TV star … who flaunted her post-breakup bod on IG while wearing a white thong bikini Thursday.

“Pretending it’s Positano ✨,” Cavallari said in her caption … which is actually pretty interesting, considering that was a stop on her honeymoon with the ex-NFL QB in 2013.

Kristin recently spoke with People about her breakup with Cutler … saying the two are still on great terms, but adding it “just didn’t work out.”

“And, that’s — that’s it,” Cavallari said of the divorce. “There was no real drama. There was no scandal. There was no nothing.”

While Kristin’s social media presence has been a treat in recent months, Cutler’s has been just as enjoyable … with a little less skin.

Remember, the 37-year-old had a VERY public investigation into who was attacking his beloved chickens … just to find out it was a damn raccoon.

Gotta admit … Kristin may get the edge here. Sorry, Jay.