Kim Kardashian sunglasses gym workout bottled water

Kim Kardashian doesn't let a little rain dampen her workouts!

The Keeping Up With The Kardashians star hit the gym in LA this morning for a sweat session, and the gorgeous brunette kept it casual in a grey hoodie and no makeup. Birkins and leather jackets at the gym isn't for KK ... leave that up to Nicole Richie!

Maybe the former Mrs. Humphries is making sure she's strong enough to fight off an attacker if there happens to be another "flour bomb" incident in the future?

The Kardashian Kollection mogul is still deciding if she will press charges against the woman who covered her in flour on the red carpet at the launch of her new fragrance, True Reflection, last week.

You don't mess with "The Tush" and expect to get away with it!