Strassburg Sock Large Size (Fits calf size 16-21 inches);

For Plantar Fasciitis medical research shows average recovery time of 18.5 days and 97.8% recovered within 8 weeks. ONLY medically proven soft night splint.Also effective for Achilles Tendonitis and Tight calves.Recommended by top podiatrists, physical therapists, orthopedic surgeons, athletics, and top sports medicine docs.