Khloe Kardashian's Ass Is Still in the Game

Khloe Kardashian's still got a lot of junk in her trunk despite a rigorous workout regime that has every other part of her body slimming down.

Khloe ran errands Monday in Bev Hills, hitting up the Meche hair salon -- but in boots and jeans like this ... NO one was paying attention to her hair.

Ass ... still that family's greatest export.