Allbirds Men's Black Athletic Shoes

Allbirds Tree Runners. Size 9 men. Brand new in box. Super comfortable. Sleek black design.Lightweight. Perfect for everyday wear, breathable, silky-smooth sneaker made with responsibly sourced eucalyptus tree fiber treads lightly in everything you do. Best For: Walking, everyday wear Thermoregulating Material: Lightweight, breathable eucalyptus fiber provides next-level comfort Versatile Design: Wear-with-everything classic style, great for travel FSC-certified TENCEL™ Lyocell (eucalyptus tree fiber) upper SweetFoam® midsole made with sugarcane-based green EVA Bio-based TPU eyelets Shoe laces made from recycled plastic bottles Castor bean oil-based insole foam ZQ merino wool heel lining **Allbirds proprietary knit feels silky smooth, breathable, and pleasantly cool thanks to eucalyptus tree fiber responsibly sourced from FSC® Certified forests. **Contoured and delightfully bouncy, the Brazilian sugarcane midsole is called SweetFoam®, which is made with the world’s first carbon negative green EVA.