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SKU: 843CSSW35
Sigvaris Soft Opaque Women's Knee High 30-40 mmHg
$73.56
$73.56
$91.95
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HSA/FSA accepted.
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Description
Sigvaris Style Soft Opaque Women's Knee High 30-40 mmHg delivers Extra Firm Compression for lower-leg containment, built around a smooth, professional-looking everyday stocking
Designed for a stylish opaque look for professional wear, the Sigvaris Style Soft Opaque Knee High stocking, often just called a compression sock, provides 30-40 mmHg of graduated compression in a closed toe style, for women. Part of Sigvaris' Soft Opaque line, it's made with a durable microfiber knit with a stylish opaque look, built for professional and everyday wear. A practical choice for wearers who want a smooth, professional appearance with all-day compression. Sigvaris' 160-year history as a family-owned Swiss company underpins its reputation as a trusted name in medical compression therapy.
Key Features
Medical Benefits
Clinical Applications
Product Specifications
Indications & Contraindications
Sigvaris Style Soft Opaque (840) Size Chart
Style
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.
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" |
| Thigh Circumference | 45.5–66 cm18"–26" | 48–73 cm19"–28.5" | 52–84 cm20.5"–33" |
| Hip Circumference Guidelines | 83–112.5 cm32.5"–44.5" | 87–127 cm34.5"–50" | 98–150.5 cm38.5"–59.5" |
Small
Ankle Circumference
18–21.5 cm7"–8.5"
Calf Circumference
28–39 cm11"–15.5"
Thigh Circumference
45.5–66 cm18"–26"
Hip Circumference Guidelines
83–112.5 cm32.5"–44.5"
Medium
Ankle Circumference
21.5–25.5 cm8.5"–10"
Calf Circumference
31.5–45 cm12.5"–17.5"
Thigh Circumference
48–73 cm19"–28.5"
Hip Circumference Guidelines
87–127 cm34.5"–50"
Large
Ankle Circumference
25.5–29 cm10"–11.5"
Calf Circumference
35.5–51 cm14"–20"
Thigh Circumference
52–84 cm20.5"–33"
Hip Circumference Guidelines
98–150.5 cm38.5"–59.5"
Length (Short vs Long)
| Measure | Short | Long |
|---|---|---|
| Calf Length | ≤41 cm≤16" | >41 cm>16" |
| Leg Length | ≤72 cm≤28.5" | >72 cm>28.5" |
Short
Calf Length
≤41 cm≤16"
Leg Length
≤72 cm≤28.5"
Long
Calf Length
>41 cm>16"
Leg Length
>72 cm>28.5"
Size codes: Sizes combine letter + length: SS/SL, MS/ML, LS/LL.
- Women's Shoe Sizes: Short leg 5.5–9.5, Long leg 8–12
- Maternity hip circumference guidelines: Small: <56" (142 cm), Medium: <62" (157.5 cm), Large: <70" (178 cm)
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: Style Soft Opaque 840 Knee Highs, Thigh Highs, Pantyhose, Maternity. 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 inches 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.
Measured up? Find your exact size
Take your measurements straight to our interactive brand charts, or convert a size you already know into another brand.
Interactive size charts Size converter (switch brands)
Frequently Asked Questions
Is this appropriate for the office?
How soft is this fabric?
Will the top band slip down?
Is this easy to put on and take off?
Will this conceal varicose veins?
Overall rating: 5.0 / 5 from 3 reviews.
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Reliable Product
"Sturdy, quality material, good price"
My foot cramps stopped! I
"My foot cramps stopped! I work 12 hour days walking on cement floors. These are a lifesaver for being able to sleep!!!"
