Allbirds Launches Socks in Its First Move Beyond Footwear

...at least that’s what its latest product launch could imply. Allbirds tiptoed into the apparel space on Tuesday by launching three sock styles made with a proprietary yarn.

Like the Tree Runners paired with every hoodie in Silicon Valley, Allbirds’s carbon neutral socks are made with ethically sourced wool and recycled plant parts.

Allbirds socks are more than a classy last minute birthday gift. The company has raised a total of $77 million from investors sold on its slipper-like footwear. Socks indicate that Allbirds has bigger ambitions—and with its new yarn, it can launch other clothing basics while keeping its eco-friendly reputation.

We’ve seen this nature film before. When a D2C startup hits a critical mass of fans, its founders sense an opportunity to launch new product categories. See: Glossier’s recent Glossiwear drop, Away’s rumored expansion into travel-lifestyle gear, Loeffler Randall’s apparel addition, and Casper’s move from mattresses to night lights and dog beds.