Allbirds Mens Wool Runners Sneakers in Savannah Night (Navy Sole) The Original Wool Runners. Our superfine ZQ Merino wool material is incredibly soft and cozy, naturally thermoregulating, and ready for anything. Best For: Walking, cooler weather, everyday wear. Super Soft Material: Warm and cozy premium ZQ Merino wool provides next-level comfort. Versatile Design: Wear-with-everything classic style, great for travel. Size: 10 Color: Navy Blue Material: Merino wool VGUC with signs of wear on sole