SKU: 115282
Jobst Opaque Knee High 30-40 mmHg
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Description
JOBST Opaque 30-40 mmHg Knee High for Maximum Therapeutic Compression
JOBST Opaque Knee High Compression Stockings deliver 30-40 mmHg extra-firm prescription-strength graduated compression for managing severe chronic venous insufficiency, significant lymphedema, and post-thrombotic syndrome. The elegant opaque construction conceals imperfections while providing the highest level of medical-grade support available in a ready-to-wear stocking. Advanced therapy meets discreet styling.
JOBST combines medical heritage with innovative fabric technology, creating compression solutions that are clinically proven to support circulatory health and improve quality of life.
The durable construction withstands rigorous wear. For similar extra-firm support, explore our 30-40 mmHg Compression Stockings for Women. Discover the full range in the JOBST Opaque Collection. Graduated compression therapy is clinically proven for managing severe varicose veins, lymphedema, and chronic venous insufficiency. Find prescription-level support.
Key Features
Medical Benefits
Clinical Applications
Product Specifications
Indications & Contraindications

JOBST Knee High Size Chart
UltraSheer · Opaque · Relief · SoSoft · Casual & Style Patterns — 15-20 / 20-30 / 30-40 mmHg
Tap any measurement below to see your full size details.
| Measure | S | M | L | XL | LFC | XLFC |
|---|---|---|---|---|---|---|
| Calf Circumference (cC) | 28-38 cm11"-15" | 30-42 cm11⅞"-16½" | 32-46 cm12½"-18⅛" | 34-50 cm13⅜"-19⅝" | 46-61 cm18"-24" | 46-61 cm18"-24" |
| Ankle Circumference (cB) | 18-21 cm7"-8¼" | 21-25 cm8⅜"-9⅞" | 25-29 cm10"-11⅜" | 29-33 cm11½"-13" | 25-30 cm10"-11⅞" | 30-36 cm12"-14" |
- LFC = Large Full Calf, XLFC = X-Large Full Calf.
- Length: Petite 15" or less · Regular greater than 15" · Tall greater than 19.75". Tall recommended for shoe size greater than 12.
Measure first thing in the morning, before swelling, with a soft tape measure held level. Applies to: UltraSheer · Opaque · Relief · SoSoft · Casual & Style Patterns — 15-20 / 20-30 / 30-40 mmHg. Step-by-step Measuring Guide →
Measuring Guide for Sizing of Compression Stockings
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.









