Allbirds Tree Dasher 2 Review | Testing Allbirds Performance 。Meet The Tree Dasher Relay - our laceless active shoe made from earth-friendly materials. Just slip \'em on and get outside. Best For: Walks, travel, and light workouts On-the-Go Convenience: A stretch one piece upper, functional heel tabs, and comfortable heel construction make this the perfect shoe to leave by your door for a quick getaway Sock-Like Fit: Flat knit one-peice upper provides breathability and comfortably hugs your foot for extra support These shoes are brand new, unworn and in the original box