Most people wash the clothes they work out in, but not Nicole Richie!

The starlet wore the exact same outfit to her Studio City gym on Wednesday (left) that she wore on Tuesday (right), down to the same red bag and the same green smoothie!

Socks, shoes, shirt, leggings, leather jacket, hair, sunglasses - SAME, SAME, SAME!

This isn't the first time Nicole has played gym-outfit-repeat. If you can spot ANYTHING different about Nicole's gym get-up, please let us know!