![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_375/cms/66WyleAnSXt3WdrqJBnd0H/87e9575519fc8e8d20e3bc876529635a/PDP-Below-The-Fold-Imagery-Mobile_1.jpg)
TREE UPPER
Seamless Comfort
We knitted a unique one-piece upper made with FSC® Certified eucalyptus trees for a perfect fit that’s flexible, lightweight, and breathable in every step.
![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_860/cms/1US9T6SdKjJjlmQHTWc4vs/512ee82d14f219e42802e01708f9a1e0/PDP-Below-The-Fold-Imagery-Desktop_1_TD2.jpg)
![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_375/cms/2SDIQYvwuzFQeUJW7pgRU7/4cd7c855e06db796e7079ad6184b02f9/PDP-Below-The-Fold-Imagery-Mobile_2.jpg)
Sugarcane Midsole
Sweet Stability
Optimized for cushion, stability, and energy return, our SweetFoam® midsole is made with the world’s first carbon negative green EVA.
![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_860/cms/51vF1YLaAqCDHrH0TekSIr/32fbe41284923ffbab79fcef6a8b1180/PDP-Below-The-Fold-Imagery-Desktop_2_TD2.jpg)