Quick answer
The Allbirds Cruiser Coastal generally runs true to size for most wearers, but you may consider sizing down if you have narrow feet or prefer a snugger fit, or sizing up if you have wide feet or plan to wear thick socks.
Why sizing may vary
The Cruiser Coastal uses a lightweight, soft construction that stretches slightly with wear. This means the fit can adapt to your foot over time, but initial sizing still matters for comfort. The shoe's Blizzard Sole or Medium Gum Sole options do not affect length sizing.
Cruiser Coastal sizing FAQ
Does the Cruiser Coastal run true to size?
Yes, for most people. The shoe is designed with a standard width and medium volume. If you wear a size 10 in most sneakers, order size 10.
Should I size down if I have narrow feet?
Consider sizing down by half a size if you have narrow feet or prefer a snug fit. The soft material won't pinch, but a half-size down prevents excess room.
Should I size up if I have wide feet?
Yes, size up by half a size if you have wide feet or plan to wear thicker socks. The shoe's lightweight build does not offer extra width, so going up provides needed room.
How does the fit compare to other Allbirds shoes?
The Cruiser Coastal fits similarly to the original Cruiser and the Tree Skipper. If you wear those in size 10, order size 10 here.
Can I exchange if the size isn't right?
Yes, Allbirds offers free exchanges within 30 days of purchase. Order your usual size first and adjust based on feel. Try your usual size first, then use the free exchange if needed.
Product facts
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Men's Cruiser Coastal - True Navy (Blizzard Sole): Inspired by a classic court style, this signature shoe delivers the right balance of style and comfort. Its lightweight build and supple softness mean the shoe molds to your foot, so a true-to-size fit works for most, but narrow feet may feel loose.
Men's Cruiser Coastal - True Navy (Blizzard Sole)