Allbirds Tree Runner Navy Night, Womens Size 8 Some wear on the bottom, as shown. No other wear. All day, every day shoe. Great for walking. Blue and white laces. 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