The Tree Dasher 2 is the next evolution of our best-selling running shoe, designed to support your everyday runs, walks, and light workouts. Made with lightweight and breathable eucalyptus fiber, this shoe has lighter, more responsive foam, extra grip, padded heel collar to reduce slipping, and an improved fit to keep you running and nature winning. Features & Design: lightweight and breezy, flexibly conforms to your movements, help your feet stay cool, silky-smooth material, so soft you can wear sockless, minimizes odor, machine washable, low carbon footprint, padded insole, tree upper, bio-based eyelets, recycled laces, lightweight sole, Allbirds Men's Tree Dasher 2, Blizzard/Blizzard, Size 13