Shop the one that started it all: Allbirds Merino Wool Runners. The superfine ZQ Merino wool material is incredibly soft and cozy, naturally thermoregulating, and ready for anything.Best For: Walking, cooler weather, everyday wearSuper Soft Material: Warm and cozy premium ZQ Merino wool provides next-level comfortVersatile Design: Wear-with-everything classic style, great for travelGreat condition