Actor Chris Pratt was the subject of sharp criticism online Tuesday when he posted a photo of himself at the gym with a plastic water bottle.

The Guardians of the Galaxy actor shared the snap on Instagram, along with a promotion for his upcoming partnership with Amazon to sell athletic gear. “You’re probably wondering why I’m standing here, low key flexing, gazing into the distance,” he wrote. “Well, turns out I’m teaming up with @amazon to show you guys everything I use for my workouts, keeping active, and all that fun stuff to get you prepped for 2020.”