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SKU: 504CS1O77
Sigvaris Natural Rubber Unisex Open Toe Knee High 40-50 mmHg
$113.96
$113.96
$142.45
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HSA/FSA accepted.
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Description
Sigvaris Natural Rubber delivers 40-50 mmHg graduated compression in a Calf style with a Open Toe design. Ideal for patients with more serious indications.
Key Features
Medical Benefits
Clinical Applications
Product Specifications
Indications & Contraindications
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 →
Measuring Guide for Sizing of Compression Stockings
Sizing
Measuring Guide
How to measure your legs for compression stockings, support socks, support hose, and gradient compression hosiery.
Where to Measure
- For knee-highs: measure around your ankle and calf. Then measure the distance from the floor to the back of your knee.
- For thigh-highs and pantyhose: measure around your ankle, calf, and upper thigh. Then measure the distance from the floor to your upper thigh (bottom of your buttocks).
An important measuring tip: take your measurements with a tape measure, as shown below. Sizing charts are located on every product’s “see details” page for your convenience. If you need further assistance, please call 1-800-504-7315 or Live Chat with us.
How to Properly Measure and Apply Compression Stockings
The Key Measurements
Ankle
Measure around the ankle at the narrowest point, generally above the ankle bone.
Calf
Measure around the calf muscle at the widest part.
Length
Measure from the floor to the bend behind the knee.
Thigh
Measure around the thigh approximately 3" below the gluteal fold (crease of the buttocks).
Thigh Length
Measure the distance from the bottom of your buttocks to the floor.
Sizes may differ between various brands of support stockings—each manufacturer has their own sizing chart. A medium in one brand may not be a medium in another, and some brands offer petite (shorter) lengths while others do not. Knowing your measurements will ensure you get compression hosiery that fits properly and comfortably. Sizing charts are located on every product’s “see details” page.
Please call 1-800-504-7315 or Live Chat if you need more help sizing.
Frequently Asked Questions
Who is this product designed for?
Does this contain latex?
Is this available in extended sizes?
Can this help prevent a leg ulcer from coming back?
Is this a medical-grade compression garment?
Overall rating: 4.7272725 / 5 from 11 reviews.
AI Generated Review Summary
Summary topics
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Review highlights
Reviews
great strentgh
"great product for my vein problem"
Nice
"Nice"
Required wearing.
"Required wearing."
Comfortable
"Comfortable for short wear, could be better."
Everything that I needed in
"Everything that I needed in a compression sock. Fast service, easy to work with."
Can tell a big difference
"Can tell a big difference with theses."
very good stocking. help my
"very good stocking. help my leg problem&think very dood price too. Thankyou."
I depend on this product,
"I depend on this product, so I appreciate being able to buy it online."
I have had to wear
"I have had to wear these for many years. Finally I have found an easier and more economical way to replase them Thank you!"
