Allbirds Tree Flyers

Sustainable materials and production ; New Swiftfoam is promising ; Well-cushioned

Upper is a bit baggy ; Not quite enough energy return for fast tempo runs ; Not cheap for what it has to offer

The Tree Flyers are Allbirds’ first attempt to woo the hardcore running crowd, and it’s not a bad one. The Tree Flyers might not be as competent as similar offerings from Adidas, Nike and Asics, but it certainly shows potential. Not to mention, the...

, although none of these shoes will be as good for the planet.