Allbirds Men。Allbirds Mens Size 13 WRU Wool Runner Up Mizzle Grey High Top Running Shoes Pre-Owned in Good Condition. Light staining on left shoe as shown in last pic. Please View All Pictures in Detail. A superfine ZQ merino-wool upper makes this lightweight sneaker soft and cozy, naturally thermoregulating and ready for anything. Crafted with a bio-based water-repellent shield, this robust sneaker is built on a springy sole made with FSC-certified natural rubber for a feel-good fit. * Lace-up style * Water repellent * Merino wool upper and lining/rubber sole * Imported * The SweetFoam midsole is made with sugarcane-based EVA, a carbon-negative alternative to EVA foam derived from petroleum. The sugarcane is sourced from southern Brazil, where it relies on rainwater, not irrigation. Its sourced according to rigorous standards jointly developed by Proforest and Braskem, and the farms are audited by a third party. AllBirds is allowing its Carbon Footprint tools to be open source rather than proprietary, so it can make a difference in the shoe industry as a who