What compression level (mmHg) do I actually need?

Across the reviewers we read, 15-20 mmHg is the most commonly recommended starting point for travel, all-day standing, and mild swelling, while 20-30 mmHg ('firm' or medical-grade) is favored for recovery, varicose veins, and more pronounced circulation issues. Several community threads note higher mmHg socks are harder to pull on, so beginners often start lower unless a clinician advises otherwise.