Size Guide
Not sure which size to pick? Measure your foot and match it against the table below — it only takes a minute and makes all the difference to comfort.
How to measure your foot
- Stand on a piece of paper (in the socks or bare feet you'd normally wear) with your heel against a wall.
- Mark the wall at your heel and the floor at the tip of your longest toe.
- Measure the distance between the two marks in centimetres.
- Repeat for your other foot and use the larger measurement.
- Match your measurement to the size table below rather than your usual shoe size, as shoe sizing varies by brand.
Adult sizing — most styles
| Size | UK Shoe Size | EU Shoe Size | Foot Length |
|---|---|---|---|
| Small | 4–7 | 37–41 | 23–25.5cm |
| Medium | 8–10 | 42–45 | 26–28cm |
| Large | 11–13 | 46–48 | 28.5–31cm |
Adult sizing — selected bundles
A few of our bundle sets (including some Merino bundles) use a slightly wider size band. Always check the sizes listed on the product page itself for the exact style you're viewing.
| Size | UK Shoe Size | EU Shoe Size |
|---|---|---|
| Small | 3–6 | 36–39 |
| Medium | 6–9 | 39–43 |
| Large | 9–12 | 43–47 |
Children's sizing
| UK Shoe Size | EU Shoe Size |
|---|---|
| 12.5–3.5 | 31–36 |
Getting the fit right for how you'll wear them
Boot, hiking and walking socks should fit snugly with no excess fabric — a loose sock inside a boot is one of the fastest routes to blisters on longer walks. If you're between sizes, size down for these styles.
Bed and lounge socks are cut a little looser and softer since they're not doing any work against a shoe — if you're between sizes, size up for these styles for extra cosy comfort.
Still unsure? Get in touch and we're happy to help you pick the right fit.