Smartwool size chart for hiking socks

A US men’s 9 is size L in Smartwool’s unisex chart. Find your own shoe size in the column you know. Smartwool prints 2 charts, for adult and kids’ sizes: use the one your model lists.

Find your Smartwool size

L is your size in this chart

S
M
L
XL
XXL
369121517.5

US men’s

Your size: 9. Bands follow this chart’s published ranges. S: 3–5.5 · M: 6–8.5 · L: 9–11.5 · XL: 12–14.5 · XXL: 15–17.5

Use the range for your model. Smartwool gives no rule for between sizes: try both sizes with your boots and check heel position and toe room.

The answer updates as you type. For the model, toe and heel checks, use the full size finder.

Smartwool unisex chart

Smartwool unisex sock sizes, as printed
SizeSmallMediumLargeX-LargeXX-Large
US Men3–5.56–8.59–11.512–14.515–17.5
US Women4–6.57–9.510–12.513–15.5N/A
Euro34–3738–4142–4546–4950–53
UK2–4.55–7.58–10.511–13.514–16.5

Source: Smartwool’s chart

60 models use this chart:

Smartwool kids’ chart

Smartwool kids’ sock sizes, as printed
SizeX-SmallSmallMediumLargeX-Large
US Shoe Size6–8.59–11.512–2.53–66.5–8
Euro Shoe Size22–2526–2829–3233–3637–40
UK Shoe Size5–7.58–10.511–13.51–4.55–6.5

Source: Smartwool’s chart

Kids’ US and UK sizes run from toddler sizes into youth sizes, so this lookup reads the EU column; the whole table is shown as printed.

5 models use this chart: