When Kim Kardashian goes to workout her million dollar booty, she doesn't just throw her sweaty rags in any old duffel -- she carries the world's most highly coveted handmade leather purse ... the Hermes Birkin.
Kim left a Beverly Hills gym on Thursday holding a black Birkin, which can cost anywhere from $9k to about $150k ... just ask Rick Yune.
She's one bougie bag lady.













