Men’s Barefoot Shoes (Slip-On / Casual / Hiking)
US Men Size Foot Length (in) Foot Width (in)
7 9.4–9.6 3.6–3.7
8 9.8–10.0 3.7–3.8
9 10.2–10.4 3.8–3.9
10 10.6–10.8 3.9–4.0
11 11.0–11.2 4.0–4.1
12 11.4–11.6 4.1–4.2
13 11.8–12.0 4.2–4.3
Women’s Barefoot Shoes (Slip-On / Sandals / Casual)
US Women Size Foot Length (in) Foot Width (in)
5 8.2–8.4 3.2–3.3
6 8.6–8.8 3.3–3.4
7 9.0–9.2 3.4–3.5
8 9.4–9.6 3.5–3.6
9 9.8–10.0 3.6–3.7
10 10.2–10.4 3.7–3.8
11 10.6–10.8 3.8–3.9
Winter Fleece Lined Barefoot Boots (Waterproof & Anti-Slip)
US Size Foot Length (in) Foot Width (in)
W6 / M4 8.6–8.8 3.3–3.4
W7 / M5 9.0–9.2 3.4–3.5
W8 / M6 9.4–9.6 3.5–3.6
W9 / M7 9.8–10.0 3.6–3.7
W10 / M8 10.2–10.4 3.7–3.8
W11 / M9 10.6–10.8 3.8–3.9
M10 11.0–11.2 3.9–4.0
M11 11.4–11.6 4.0–4.1
Kids Barefoot Shoes
US Kids Size Foot Length (in) Foot Width (in)
6T 5.4–5.6 2.2–2.3
7T 5.8–6.0 2.3–2.4
8T 6.2–6.4 2.4–2.5
9T 6.6–6.8 2.5–2.6
10T 7.0–7.2 2.6–2.7
11T 7.4–7.6 2.7–2.8
12T 7.8–8.0 2.8–2.9

* All measurements are in inches. Measure bare foot for accuracy.
* Barefoot wide toe box design. If you are between sizes, we recommend sizing up to leave toe wiggle room.
* Fleece-lined winter boots may fit slightly snugger; size up if you wear thick socks.
* Actual fit varies slightly by shoe style, upper material and waterproof membrane thickness.