Amazon.com | Allbirds Men。Allbirds SWT Trail Runner sneakers featuring a natural wool upper, cushioned comfort, and rugged gum traction sole. Designed for everyday wear, walking, travel, and light trail use. Details: Brand: Allbirds Model: SWT Trail Runner Men\'s Size 9 Wool upper Lace-up closure Black / Charcoal upper Gum traction outsole Cushioned comfort design Machine washable Good preowned condition No boxes or display items are included. SEO Keywords allbirds trail runner, allbirds mens 9, wool sneakers, trail shoes, comfort sneakers, walking shoes, travel shoes, casual sneakers, sustainable footwear, lace up sneakers, gum sole shoes, athletic shoes