Kim Kardashian The World's Most Expensive Gym Bag

2/19/2012 12:40 AM PST BY Johnny Lopez
Kim Kardashian and her Hermes Birkin
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.