The Tree Runners' magic lies in its innovative fabric composition – light and breezy tree fibre. The mesh is cool and silky-smooth to the touch, and the natural material, TENCEL™ Lyocell, lets your feet breathe in warmer weather.

Allbird Tree Runners have a celebrity backing

The versatile style and next-level comfort have garnered a loyal following among celebrities such as Matthew McConaughey, Emma Watson, Barack Obama, and Ben Affleck. Time Magazine even hailed Allbirds as the world's most comfortable shoe. Fans also praise the cushioned midsole, which provides all-day support, making it perfect for walking.

Allbirds Tree Runners in wheat for women

Aside from creating great shoes, Allbirds has stellar eco-credentials as a B Corp that believes in treading lighter on the planet by making better things in a better way.

In the case of the Tree Runners, the midsoles are called SweetFoam® and are made with the world’s first carbon-negative green EVA, derived from Brazilian sugarcane (they're delightfully bouncy, too). The laces are also made from 100% post-consumer recycled polyester.

Allbirds Tree runners in rugged green for men

So convinced are Allbirds of the Tree Runners' product benefits that they offer a 30-day return policy, meaning you can wear the shoes and return if you don't find them comfortable.

The Tree Runners retails at £110; to buy a pair visit