Graduated Compression Level & Measurement Guide
Learn how to choose the right compression level and size to boost circulation, reduce swelling, and relieve fatigue with compression socks or stockings.
01
Compression levels
Choosing compression socks with different compression levels can effectively manage all kinds of conditions.
| Class | Level | Indication & use |
|---|---|---|
| Light | 8–15 mmHg | Tired, aching legs
|
| Class I | 15–20 mmHg | Minor varicosities
|
| Class II | 20–30 mmHg | Moderate varicose veins
|
| Class III | 30–40 mmHg | Acute deep vein thrombosis
|
| Class IV | Above 40 mmHg | Severe edema |
02
How to measure and choose your size
To ensure the proper fit and effectiveness of your compression socks, accurate measurement is crucial. Follow these steps to measure correctly:
Ankle circumference
Measure the narrowest part of your ankle, just above the ankle bone.
Calf circumference
Measure the widest part of your calf.
Calf length
Measure from the base of your heel to the bend of your knee while standing.
Using these measurements, refer to the sizing chart provided by the manufacturer to find the perfect fit. Accurate measurements help in achieving the desired graduated compression, ensuring optimal support and comfort.
How SUN POLAR helps
SUN POLAR offers a total solution for your product line. Whether it is matching the right compression level to a specific user demographic or establishing a reliable sizing guide, we provide the expertise needed to simplify the selection process. Our goal is to provide your brand with the technical clarity required to ensure end-users find their perfect fit, every time.
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FAQ
What happens if I choose the wrong compression level? +
A level that's too light may not provide the support you need. A level that's too high can restrict circulation and cause discomfort, numbness, or tingling — particularly if worn by someone without a specific clinical need for that pressure. For everyday use and sport, 8–20 mmHg is generally safe for most people without a medical condition. For Class II and above, always follow the guidance of your healthcare provider. More FAQs →
When is the best time to take my measurements for compression socks? +
Morning is the best time — ideally before you've been standing or walking for an extended period. Legs tend to be at their smallest circumference in the morning, before fluid accumulates through the day. If you take measurements later in the day when your legs are more swollen, you may end up sizing up, which can lead to a sock that's looser and less effective than intended. More FAQs →
Do I need a doctor's prescription to buy compression socks? +
For light to moderate compression (8–20 mmHg), no prescription is typically required — these are widely available for general wellness, sport, and travel use. For Class II (20–30 mmHg) and above, many countries classify these as medical devices and may require a prescription or healthcare provider guidance for purchase and use. If you have a vascular condition, diabetes, or are recovering from surgery, consult your doctor before selecting a compression level. More FAQs →