allbirds | Shoes | Allbirds Mens Tree Piper Blue Knit 。A little dirty and a couple stains here and there. Good condition. The Allbirds TR Tree Runners in Blue with a White Sole are lace-up shoes designed for men in size 12. These athletic sneakers, released in 2019, feature a comfortable and breathable design with a rubber outsole for maximum performance during activities like walking, running, and jogging. The low-top shoe style and synthetic upper material make it suitable for both casual and activewear occasions, while the solid blue color adds a colorful touch to your outfit. With a foam insole and standard shoe width, these Allbirds Tree Runners are a stylish and practical choice for the modern man on the go.