RAL Class 1 vs Class 2: The Technical Standard Explained
RAL Class 1 vs Class 2: The Technical Standard Explained
If you've been prescribed or recommended medical-grade compression stockings in Australia, understanding the difference between RAL Class 1 and Class 2 is essential for selecting the right garment. At Compression Stockings Online (CSO), based in Sydney, Australia, we specialise in helping patients and healthcare professionals navigate compression classification with confidence.
What is the RAL Standard?
The RAL quality mark (from the German "Reichsausschuss für Lieferbedingungen") is an internationally recognised certification system for medical compression hosiery. It guarantees that garments deliver consistent, measurable graduated compression at the ankle, with a defined pressure profile up the limb. All compression stockings stocked by CSO — including Sigvaris, Jobst, Juzo, and Venosan — hold RAL certification.
Class 1 Compression (18–21 mmHg)
RAL Class 1 provides light graduated compression and is indicated for:
- Early-stage varicose veins with mild symptoms (heaviness, aching, tired legs)
- DVT prophylaxis during long-haul travel
- Occupational leg fatigue — ideal for nurses, teachers, retail workers, and anyone standing for extended hours
- Post-sclerotherapy maintenance (once Class 2 treatment phase is complete)
- Mild pregnancy-related swelling in the first and second trimesters
Class 1 garments are the most comfortable entry point into medical compression and are often chosen without a prescription for general leg health and prevention.
Class 2 Compression (23–32 mmHg)
RAL Class 2 delivers moderate graduated compression and is the most commonly prescribed compression class in clinical practice across Australia. It is indicated for:
- Established varicose veins with moderate symptoms (swelling, skin changes, pain)
- Post-operative care following vein stripping, EVLA, or sclerotherapy
- Chronic venous insufficiency (CVI) stages C2–C4
- DVT prevention in hospitalised or immobile patients
- Moderate to severe pregnancy oedema (third trimester)
- Post-thrombotic syndrome management
Class 2 requires a firmer fit and patients may need a short adaptation period. Proper sizing and measurement are critical — our sizing guides provide brand-specific instructions.
Key Differences at a Glance
| Feature | Class 1 | Class 2 |
|---|---|---|
| Ankle Pressure | 18–21 mmHg | 23–32 mmHg |
| Primary Use | Prevention & mild symptoms | Treatment & moderate-severe symptoms |
| Prescription Needed | Generally no | Recommended |
| Common Brands at CSO | Sigvaris, Jobst, Venosan | Sigvaris, Jobst, Juzo, Venosan |
| Comfort Level | Easy to wear daily | Firmer; may need adaptation |
Which Class is Right for You?
Your vascular specialist, GP, or physiotherapist can advise the appropriate compression class based on your diagnosis. If you're unsure, our expert team in Sydney is happy to help. Contact us on (02) 9062 3243 or email info@compressionstockingsonline.com.au for personalised guidance on medical-grade graduated compression from Australia's trusted specialist retailer.
Explore our full range of RAL-certified compression stockings from Sigvaris, Jobst, Juzo, and Venosan — shipped fast from Sydney to anywhere in Australia.