Allbirds Tree Flyer Running Shoes – Size 8.5

Built to Fly on Every Run

The Allbirds Tree Flyer is Allbirds' high-performance running shoe, engineered for road runners who want a responsive, cushioned ride without unnecessary bulk. Allbirds built this shoe around natural materials and biomechanical design — meaning it works with your foot, not against it.

What It Does for Your Foot

• Lightweight knit upper — Made from eucalyptus tree fiber (TreeFit™ technology), it stretches and molds to your foot for a sock-like fit with zero hot spots or pressure points
• Responsive cushioning — The thick midsole uses Allbirds' plant-based SweetFoam® to absorb impact on each stride while snapping back energy with every push-off — ideal for tempo runs and long distances
• Natural arch support — The contoured footbed cradles your arch so your foot stays aligned mile after mile, reducing fatigue
• Breathable & moisture-wicking — The eucalyptus knit pulls heat and sweat away from your skin, keeping feet cool and blister-free
• Grippy outsole — The multi-directional rubber tread pattern handles road surfaces with confidence

Best For

• Road running and trail-adjacent paths
• Everyday training runs (5K–half marathon range)
• Runners who want lightweight performance with eco-conscious materials

Size: 8.5  |  Color: Black / Yellow  |  Condition: Great