Showing the world how important it is to stay properly hydrated during the sweltering summer months, Mary-Kate Olsen was spotted strolling around Los Angeles, California with a big bottle of SmartWater in hand (Jennifer Aniston would be so proud!).
The pint-sized actress sported a rather hodge-podge ensemble including a black and white plaid patterned top along with a pair of cutoff denim shorts and black strappy sandals.