Allbirds Women's Tree Runners Breathable Casual Lightweight Sneakers Shoes 10

New in Box Size: 10 Our breathable, silky-smooth sneaker made with responsibly sourced eucalyptus tree fiber treads lightly in everything you do. Best For: Walking, warmer weather, everyday wear Thermoregulating Material: Lightweight, breathable eucalyptus fiber provides next-level comfort Versatile Design: Wear-with-everything classic style, great for travel Sustainable Materials: 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 Some models may include a wool-lined insole instead of the TENCEL™-lined insole featured in the image