ALLBIRDS Men's Tree Runners Jet Black White Sole 13 Pre-owned ALLBIRDS trainers. Marks on white sole, pictured. The breathable, silky-smooth sneaker made with responsibly sourced eucalyptus tree fiber treads lightly in everything you do. Color: Jet Black/White Sole Style: Sneaker/Trainer 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 Upper: FSC-certified TENCEL Lyocell (eucalyptus tree fiber) Lining: ZQ merino wool heel Midsole: SweetFoam made with sugarcane-based green EVA Bio-based TPU eyelets Shoe laces made from recycled plastic bottles Castor bean oil-based insole foam Heel to toe: 13”