Despite the casual outing, Kardashian arrived all dolled up in a white vintage Maison Margiela goat fur vest, skin-tight leather pants ... featuring a brown smokey eye and bronzed skin.

Bieber wore a chocolate brown leather jacket with black faux-fur trim on the collar and cuffs ... Jenner kept it ultra-feminine in a cream vest layered over a black long-sleeved top and a leather ...