Popular Allbirds Trail Runner SWT great for hiking, walking and trail running. Features include: durability, stability, traction, grippy treads, tear-resistant ripstop mudguard, single-piece knit upper and pull tab with snug,sock-like collar. Men's size 10. In charcoal and black color with heather charcoal uppers. In excellent lightly preowned condition. Stored in smoke and pet free environment.