Leonardo DiCaprio takes his footwear choices very seriously — so much so that he just invested his money in one of his favorite sneaker brands.

The environmentally conscious actor has teamed up with sustainable footwear company Allbirds, news that comes hot on the heels of the brand’s latest launch: a sustainable, eco-friendly sole unveiled on the label’s debut flip-flop.

“Creating sustainable consumer products requires a deep commitment from brands that understand the role they have in helping solve our environmental crisis,” DiCaprio said in an exclusive statement. “Allbirds is on the forefront of developing new materials that will serve as a model for the footwear industry. This kind of innovation is crucial for creating a more sustainable future. I am proud to join the company as an investor.”