The Allbirds Tree Dasher 2 delivers sustainable performance with a sleek, breathable design. Crafted from eucalyptus tree fiber for lightweight ventilation, it features a dual-density SweetFoam midsole made from sugarcane for responsive cushioning and energy return. The natural rubber outsole provides grip and durability, while the merino wool heel lining enhances comfort—perfect for eco-conscious runners and everyday wear.