Whether you're cheering from the stands at a sporting event or heading to a weekend get-together, the allbirds Men's Tree Runner NZ Shoes deliver lightweight, breathable comfort that pairs perfectly with both casual and athletic wear. The Tree Fiber fabric, made from TENCEL™ Lyocell and recycled polyester, keeps feet cool, while a SweetFoam® sugarcane-based outsole and bouncy Featherbed™ insole provide cushioned support with every step. Finished with a soft wool lining and eco-friendly laces crafted from recycled plastic bottles, they're a versatile, sustainable choice for all-day wear