Allbirds Tree Runner Sneakers Black Women’s Size 10 Excellent condition. Never worn. Allbirds’ best-selling shoe, the original Tree Runner is light, airy, and comfy beyond compare. Ideal for everyday wear. Allbirds is a proud Certified B Corporation and sources materials that are FSC®-certified. Introducing the Allbirds® Tree Runner, a fusion of eco-chic and comfort. Crafted from responsibly sourced eucalyptus tree fiber, its silky-smooth polyester upper and lining keep your feet cool. Featuring a lace-up closure, closed toe, and cushioned midsole for all-day support, it's ideal for casual wear, walks, and sunny days. FSC-certified TENCEL™ Lyocell (eucalyptus tree fiber) upper. EVA insole. Bio-based TPU eyelets. Shoe laces made from recycled plastic bottles. ZQ merino wool heel lining. If you're a half size, size up. Machine washable, air dry. SweetFoam® outsole made with sugarcane-based green EVA. Imported.