The Sigvaris Secure (550) Size Chart from the Specialty line. Toggle inches/cm and tap a measurement to highlight the right size from Sigvaris' official fitting data.
Sigvaris Secure (550) Size Chart
Specialty
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.
| Measure | Medium | Large | X Large | XX Large |
|---|---|---|---|---|
| Ankle Circumference | 21.5–25.5 cm8.5"–10" | 25.5–29 cm10"–11.5" | 29–33 cm11.5"–13" | 33–37 cm13"–14.5" |
| Calf Circumference (Average) | 31–45 cm12"–17.5" | 35–49 cm13.5"–19" | 41–56 cm16"–22" | 45–59 cm17.5"–23" |
| Calf Circumference (Full) | 45–59 cm17.5"–23" | 49–63 cm19"–25" | 56–71 cm22"–28" | 59–74 cm23"–29" |
| Thigh Circumference (Average) | 51–69 cm20"–27" | 61–77 cm24"–30" | 69–85 cm27"–33.5" | 75–93 cm29.5"–36.5" |
| Thigh Circumference (Full) | 60–78 cm23.5"–31" | 68–86 cm26.5"–34" | 76–94 cm30"–37" | 84–102 cm33"–40" |
| Measure | Short | Long |
|---|---|---|
| Calf Length | ≤41 cm≤16" | >41 cm>16" |
| Leg Length | ≤72 cm≤28.5" | >72 cm>28.5" |
Size codes: Numeric size codes combine letter + column number: 1 = Average, Short; 2 = Average, Long; 3 = Full, Short; 4 = Full, Long. Medium M1–M4, Large L1–L4, X Large X1–X4, XX Large G1–G4 (G = XX Large).
- Women's Shoe Sizes: Short Leg 5.5–9.5, Long Leg 8–12
- Men's Shoe Sizes: Short Leg 7–11, Long Leg 9.5–14
Measure first thing in the morning, before swelling, with a soft tape measure held level. Applies to: Secure 550 Knee Highs, Thigh Highs. Step-by-step Measuring Guide →
