Sizing for Sigvaris Merino Outdoor Wool 15-20 mmHg socks (421). Toggle inches/cm and tap a measurement to highlight your size — per Sigvaris' published sizing charts.
Sigvaris Merino Outdoor Wool 15-20 (421) Size Chart
Merino Outdoor Socks 421
Tap any measurement below to see your full size details.
Do not base your size on your shoe size. Medical compression garments require precise ankle and calf measurements to work correctly. Please use your exact measurements on the chart below to find your perfect fit.
👆 Tap a value in the table to highlight your size.
Sizing Chart
| Measure | S | M | L | X |
|---|---|---|---|---|
| Women's Shoe | <7.5<7.5 | 7.5–9.57.5–9.5 | 10–1210–12 | 12.5–1512.5–15 |
| Men's Shoe | <6.5<6.5 | 6.5–8.56.5–8.5 | 9–119–11 | 11.5–1411.5–14 |
| Ankle Circumference | 18–24 cm7"–9.5" | 19–26 cm7.5"–10" | 20–27 cm8"–10.5" | 21–29 cm8.5"–11.5" |
S
Women's Shoe
<7.5<7.5
Men's Shoe
<6.5<6.5
Ankle Circumference
18–24 cm7"–9.5"
M
Women's Shoe
7.5–9.57.5–9.5
Men's Shoe
6.5–8.56.5–8.5
Ankle Circumference
19–26 cm7.5"–10"
L
Women's Shoe
10–1210–12
Men's Shoe
9–119–11
Ankle Circumference
20–27 cm8"–10.5"
X
Women's Shoe
12.5–1512.5–15
Men's Shoe
11.5–1411.5–14
Ankle Circumference
21–29 cm8.5"–11.5"
Size codes: Sizes printed as S, M, L, X (X = largest size as printed on chart).
- Shoe sizes are unitless (US shoe sizes); ankle 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 Wool 15-20 Socks. Step-by-step Measuring Guide →
