Earth Day is right around the corner on Sunday, April 22. Chipotle is showing support by offering a great buy one, get one free deal.

Participating Chipotle locations will offer the deal when customers show the cashier their reusable bag or water bottle!

The deal applies for burritos, tacos, and bowls after buying one of the items listed. HelloGiggles reports that the promo will go from 10:45 a.m. to 10 p.m.

Related: Chipotle Adding Quinoa To Menu As New Grain Option

As of today, only Las Vegas and Bay Area locations confirmed to be participating. So make sure to check with your local Chipotle before asking for that second burrito!