Allbirds Fit Guide for Socks

Allbirds products fit true to size for most customers. Here's how you find your measurements:

Socks Fit Tip
If you’re at the top end of our size ranges, make sure to size up. Your feet will thank you later.

WOMEN'S SOCKS

SOCKS	S	M	L
US Shoes	5-7	8-10	11
UK Shoes	2-4.5	5-7.5	8-8.5
EU Shoes	35-37	38-40	41
cm	21.5-23.5	24-26	26.5

MEN'S SOCKS

SOCKS	M	L	XL
US Shoes	8	9-12	13-14
UK Shoes	7	8-11	12-13
EU Shoes	40-41	41-45	45-47
cm	25	26-29	29.5-30.5

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The Allbirds Approach

Wear-All-Day Comfort

Lightweight, bouncy, and wildly comfortable, Allbirds shoes make any outing feel effortless. Slip in, lace up, or slide them on and enjoy the comfy support.

Sustainability In Every Step

From materials to transport, we’re working to reduce our carbon footprint to near zero. Holding ourselves accountable and striving for climate goals isn’t a 30-year goal—it’s now.

Materials From The Earth

We replace petroleum-based synthetics with natural alternatives wherever we can. Like using wool, tree fibre, and sugar cane. They’re soft, breathable, and better for the planet—win, win, win.