Allbirds Tree Flyer Running Shoe in Blizzard/Blizzard

Go the distance in this sustainably designed running shoe with a Tencel® lyocell upper, SwiftFoam™ midsole and FSC-certified rubber sole. Even the laces are crafted from fiber made from recycled plastic bottles. The high-performance midsole maximizes energy return, while an external heel counter and flared, geometric midsole helps keep your stride steady. Cushioning: absorbs impact and distributes weight for consistent, buoyant comfort under each step Distance: maintains consistent, reliable cushioning and support on longer runs SwiftFoam midsole made with bio-based Pebax® FSC-certified Tencel lyocell upper/merino wool lining/FSC-certified natural rubber sole Imported Tencel lyocell is a sustainably produced fiber made with closed-loop processing Forest Stewardship Council® (FSC) certified, ensuring forest management that preserves biological diversity and benefits the lives of local people and workers