![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_375/cms/1zRR8LuQYsJcdru7dOktUR/99e8e1c95ec1776fb7f8f15565be42f5/W_Breezer_Mobile_treeup.png)
Tree Upper
Silky And Breezy
Our proprietary knit feels silky smooth, breathable, and pleasantly cool thanks to eucalyptus tree fiber responsibly sourced from FSC® Certified forests.
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![](http://cdn.allbirds.com/image/upload/f_auto,q_auto,w_375/cms/4fx7MAAKJbViWKGzNdNM2h/6f4aec7f6d7d19a088c2789ea6e30d70/W_Breezer_Mobile_outsole.png)
Sugarcane Outsole
Sweet On The Planet
Contoured and delightfully bouncy, our Brazilian sugarcane outsole is called SweetFoam®, which is made with the world’s first carbon negative green EVA.
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