Firm Compression Socks for Maximum Support (30–40 mmHg)
Designed for advanced circulation needs and more significant swelling — with strong, targeted support.
Maximum compression support
Helps manage more serious swelling
Designed for advanced circulation needs
Featured products
Is 30–40 mmHg right for you?
30–40 mmHg is the strongest level of compression we offer and is typically used for more advanced needs. If you’re unsure, it’s usually best to start with a lower level.
This may be right for you if:
- You have significant or persistent swelling
- You’ve been advised to wear strong compression
- Lighter compression hasn’t been enough
- You’re already familiar with compression socks
What does "30–40 mmHg" mean?
Compression levels are measured in mmHg (millimeters of mercury), which indicates how much pressure the socks apply to your legs. 30–40 mmHg is considered high compression, applying more pressure than everyday compression socks to help improve circulation and reduce swelling.
It’s commonly used for more specific needs.
Before choosing firm compression
Firm compression provides strong pressure and may not be suitable for everyone. If you're new to compression socks, we recommend starting with a lower level unless advised otherwise by a healthcare provider.
Surgeon-designed for real leg health
Dr. Johnny's compression socks weren't designed by a marketing team. They were developed by Dr. Jean Segal — a surgeon with over 35 years treating patients with venous disease, swelling, and circulation problems. Every compression level we offer exists because his patients needed it. Stylish enough to wear every day. Effective enough to make a real difference.
- Graduated compression — tightest at the ankle, loosening upward
- Designed for all-day wear across every lifestyle
- Available in medical-grade 20-30 and 30-40 mmHg for clinical needs
Why choose this level of support?
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Provides maximum compression for circulation support
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Supports circulation more effectively
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Helps manage more advanced swelling
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Designed for long-term support needs
Designed for Comfort,
Engineered for Support.
Covered & Eligible
Compression socks at this level may be eligible for insurance reimbursement in Canada or HSA/FSA use in the US, depending on your plan.
Not sure this level is right for you?
Start with lighter compression:
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