The Sigvaris Motion Thermoregulating Wool 422 Size Chart for 20-30 mmHg outdoor performance socks. Toggle inches/cm and tap a measurement to highlight your size from Sigvaris' official charts.
Sigvaris Merino Outdoor Performance Wool 20-30 (422) Size Chart
Motion — Thermoregulating Wool 422
Tap any measurement below to see your full size details.
👆 Tap a value in the table to highlight your size.
Circumference
| Measure | Small | Medium | Large |
|---|---|---|---|
| Ankle Circumference | 18–21.5 cm7"–8.5" | 21.5–25.5 cm8.5"–10" | 25.5–29 cm10"–11.5" |
| Calf Circumference | 28–39 cm11"–15.5" | 31.5–45 cm12.5"–17.5" | 35.5–51 cm14"–20" |
Small
Ankle Circumference
18–21.5 cm7"–8.5"
Calf Circumference
28–39 cm11"–15.5"
Medium
Ankle Circumference
21.5–25.5 cm8.5"–10"
Calf Circumference
31.5–45 cm12.5"–17.5"
Large
Ankle Circumference
25.5–29 cm10"–11.5"
Calf Circumference
35.5–51 cm14"–20"
Shoe Size (selects size code within each circumference size)
| Measure | SS | SM | SL | MS | MM | ML | LS | LM | LL |
|---|---|---|---|---|---|---|---|---|---|
| Women's Shoe Size | 4.5–7.54.5–7.5 | 8–10.58–10.5 | 11–13.511–13.5 | 4.5–7.54.5–7.5 | 8–10.58–10.5 | 11–13.511–13.5 | 8–10.58–10.5 | 11–13.511–13.5 | >14>14 |
| Men's Shoe Size | ≤6.5≤6.5 | 7–9.57–9.5 | 10–12.510–12.5 | ≤6.5≤6.5 | 7–9.57–9.5 | 10–12.510–12.5 | 7–9.57–9.5 | 10–12.510–12.5 | 13–15.513–15.5 |
SS
Women's Shoe Size
4.5–7.54.5–7.5
Men's Shoe Size
≤6.5≤6.5
SM
Women's Shoe Size
8–10.58–10.5
Men's Shoe Size
7–9.57–9.5
SL
Women's Shoe Size
11–13.511–13.5
Men's Shoe Size
10–12.510–12.5
MS
Women's Shoe Size
4.5–7.54.5–7.5
Men's Shoe Size
≤6.5≤6.5
MM
Women's Shoe Size
8–10.58–10.5
Men's Shoe Size
7–9.57–9.5
ML
Women's Shoe Size
11–13.511–13.5
Men's Shoe Size
10–12.510–12.5
LS
Women's Shoe Size
8–10.58–10.5
Men's Shoe Size
7–9.57–9.5
LM
Women's Shoe Size
11–13.511–13.5
Men's Shoe Size
10–12.510–12.5
LL
Women's Shoe Size
>14>14
Men's Shoe Size
13–15.513–15.5
Size codes: First letter = circumference size (Small/Medium/Large); second letter = shoe-size band within it. Printed size codes: SS/SM/SL (Small), MS/MM/ML (Medium), LS/LM/LL (Large).
- Chart header as printed: "Motion — THERMOREGULATING WOOL 422"
- Shoe sizes are unitless (US shoe sizes); circumference printed in inches with cm beneath
Need help choosing your size?
Our Certified Fitters are standing by. Mon–Fri 8am–7pm CST
📞 1-800-504-7315
Between sizes? Size down for a firmer therapeutic fit, or up for easier donning. It should feel snug — like a firm, even hug.
Wrong size? No problem. Easy exchanges — we’ll get you into the right fit.
Measure first thing in the morning, before swelling, with a soft tape measure held level. Applies to: Merino Outdoor Performance Wool 20-30 (Motion ThermoRegulating Wool 422). Step-by-step Measuring Guide →
