![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_375/cms/54oVFsSs7pY7KMsQim5sQS/9a463d4764b2a8cece2712c6345eaaaf/TreePiper-W-BTF-App-01.png)
TREE UPPER
Light And Breezy
Our proprietary knit feels silky smooth, breathable, and pleasantly cool thanks to eucalyptus tree fiber responsibly sourced from FSC® Certified forest.
![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_860/cms/4C7KkYTU12Ug7tuMnfARiz/7db87b36aef55e5157ab69c7de348e42/TreePiper-W-BTF-01.png)
![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_375/cms/38ECkFbPM2wzpNMp7spLiJ/efa303a521911c378cecdf4024b50468/TreePiper-W-BTF-App-02.png)
SUSTAINABLE STYLE
Evolution Of A Classic
Eucalyptus fiber, oversized accents and an embroidered collar turn this throwback-inspired low top into an environmentally conscious sneaker that never goes out of style.
![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_860/cms/01f9RA9kobpbw7gFAegRF0/a2ff8f4ec2fe004543c8029ddad8a85f/TreePiper-W-BTF-02.png)
![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_375/cms/2RPVCgmNWKRxisHKncyvNe/0c594bdf5316bfc20c611f0fc67867b4/TreePiper-W-BTF-App-03.png)
SUGARCANE MIDSOLE
Sweet On The Planet
Contoured and delightfully bouncy, our Brazilian sugarcane midsole is called SweetFoam®, which is made with the world’s first carbon negative green EVA.
![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_860/cms/5km0yVriB2mNCYKwGMK61g/9bf16dfc0c30395837a5c4ff31b62aa0/TreePiper-W-BTF-03.png)