Color:Grey/Black Size: US MENS 11.5 Brand: Allbirds Condition: Worn once, like new Best For: Warm weather, everyday wear, socks optional Breezy Material: Lightweight, breathable tree fiber in the upper material delivers airy, next-level comfort Versatile Design: Wear-with-everything style, great for travel Where It’s Made: Made in Vietnam. Learn more about Allbirds operations on website Sustainable Materials: Upper made with a TENCEL™ Lyocell (tree fiber) blend SweetFoam® midsole made with sugarcane-based green EVA Shoelaces made with recycled polyester Castor bean oil-based insole foam Some models may include a wool-lined insole instead of the TENCEL™-lined insole featured in the image