Sizing for the Sigvaris Natural Rubber (500) Specialty line. Toggle inches/cm and tap a measurement to highlight your size, straight from Sigvaris' published fitting charts.
Sigvaris Natural Rubber (500) Size Chart
Specialty
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 | X Large |
|---|---|---|---|---|
| Ankle Circumference | 19–23 cm7.5"–9" | 23–30 cm9"–12" | 30–40 cm12"–15.5" | 40–46 cm15.5"–18" |
| Calf Circumference (Average) | 28–38 cm11"–15" | 32–43 cm12.5"–17" | 36–48 cm14.5"–19" | 45–57 cm18"–22.5" |
| Calf Circumference (Full) | ≤43 cm≤17" | ≤48 cm≤19" | ≤57 cm≤22.5" | ≤68 cm≤27" |
| Calf Circumference for 505C (Full only) | 32–43 cm12.5"–17" | 36–48 cm14.5"–19" | 45–57 cm18"–22.5" | Not available in XLNot available in XL |
| Thigh Circumference (Average) | 41–54 cm16"–21" | 48–61 cm19"–24" | 58–71 cm23"–28" | NANA |
| Thigh Circumference (Full) | ≤61 cm≤24" | ≤71 cm≤28" | ≤81 cm≤32" | NANA |
| Thigh Circumference for 505T (Full only) | ≤61 cm≤24" | ≤71 cm≤28" | ≤81 cm≤32" | NANA |
| Hip Circumference Guidelines | <122 cm<48" | <137 cm<54" | <155 cm<61" | NANA |
Small
Ankle Circumference
19–23 cm7.5"–9"
Calf Circumference (Average)
28–38 cm11"–15"
Calf Circumference (Full)
≤43 cm≤17"
Calf Circumference for 505C (Full only)
32–43 cm12.5"–17"
Thigh Circumference (Average)
41–54 cm16"–21"
Thigh Circumference (Full)
≤61 cm≤24"
Thigh Circumference for 505T (Full only)
≤61 cm≤24"
Hip Circumference Guidelines
<122 cm<48"
Medium
Ankle Circumference
23–30 cm9"–12"
Calf Circumference (Average)
32–43 cm12.5"–17"
Calf Circumference (Full)
≤48 cm≤19"
Calf Circumference for 505C (Full only)
36–48 cm14.5"–19"
Thigh Circumference (Average)
48–61 cm19"–24"
Thigh Circumference (Full)
≤71 cm≤28"
Thigh Circumference for 505T (Full only)
≤71 cm≤28"
Hip Circumference Guidelines
<137 cm<54"
Large
Ankle Circumference
30–40 cm12"–15.5"
Calf Circumference (Average)
36–48 cm14.5"–19"
Calf Circumference (Full)
≤57 cm≤22.5"
Calf Circumference for 505C (Full only)
45–57 cm18"–22.5"
Thigh Circumference (Average)
58–71 cm23"–28"
Thigh Circumference (Full)
≤81 cm≤32"
Thigh Circumference for 505T (Full only)
≤81 cm≤32"
Hip Circumference Guidelines
<155 cm<61"
X Large
Ankle Circumference
40–46 cm15.5"–18"
Calf Circumference (Average)
45–57 cm18"–22.5"
Calf Circumference (Full)
≤68 cm≤27"
Calf Circumference for 505C (Full only)
Not available in XLNot available in XL
Thigh Circumference (Average)
NANA
Thigh Circumference (Full)
NANA
Thigh Circumference for 505T (Full only)
NANA
Hip Circumference Guidelines
NANA
Length (Short vs Long)
| Measure | Short | Long |
|---|---|---|
| Calf Length | ≤40 cm≤15.5" | >40 cm>15.5" |
| Leg Length | ≤71 cm≤28" | >71 cm>28" |
Short
Calf Length
≤40 cm≤15.5"
Leg Length
≤71 cm≤28"
Long
Calf Length
>40 cm>15.5"
Leg Length
>71 cm>28"
Size codes: Numeric size codes combine letter + column number: 1 = Average calf, Short; 2 = Average calf, Long; 3 = Full calf, Short; 4 = Full calf, Long. Small S1–S4, Medium M1–M4, Large L1–L4, X Large X1–X4.
- 505C (knee-high) is available in full calf only; not available in X Large.
- 505T (thigh-high) is available in full thigh only.
- Thigh, hip, and 505T measurements are not printed for X Large; chart states: Custom sizes available. Please contact customer care for details.
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: Natural Rubber 500 Knee Highs, Thigh Highs, Pantyhose. Step-by-step Measuring Guide →
