Size

Smartwool Size Guide

All measurements in inches (in) / centimeters (cm). Shoe sizing US / EU / UK.

Unisex Socks Size Chart

Size
US Men Shoe
US Women Shoe
S
3–5.5
4–6.5
M
6–8.5
7–9.5
L
9–11.5
10–12.5
XL
12–14.5
N/A
XXL
15–17.5
N/A

Kids Socks Size Chart

Size
US Kids Shoe
EU Shoe
XS
6–8.5
22–25
S
9–11.5
26–28
M
12–2.5
29–32

Men’s Apparel Size Chart (Chest Measurement)

Size
XS
S
M
Chest
(in/cm)
32–34"
81.5–86.5cm
35–37"
89–94cm
38–40"
96.5–101.5cm
Size
L
XL
XXL / 3XL
Chest
(in/cm)
41–43"
104–109cm
44–46"
112–117cm
47–49"
119.5–124.5cm
50–52"
127–132cm

Women’s Apparel Size Chart (Chest Measurement)

Size
XS (0–2)
S (4–6)
M (8–10)
Chest
(in/cm)
33–34"
84–86.5cm
35–36"
89–91.5cm
37–38"
94–96.5cm
Size
L (12–14)
XL (16–18)
1X–4X Plus
Chest
(in/cm)
39–41"
99–104cm
42–44"
106.5–112cm
43–57"
109–145cm

Note: This size chart references official Smartwool US website sizing data for reference only. Actual fit may vary per product style. Measure your body for best fit.

For unisex apparel: Women may size down one size for a regular fit, or keep their normal size for a looser fit.

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