The first-ever Plantar Fasciitis sock featuring award winning, patented FS6® technology. A technical performance quarter crew sock that strengthens the foot structure and prevents Plantar Fasciitis symptom onset as well as overuse injuries. With precise targeted compression levels and cushioning, the OS1st FS4 Plantar Fasciitis Quarter Crew sock features Compression Zone Technology® that is designed for proper foot support. Get relief from past injuries, plantar fasciitis, chronic heel pain, swollen arthritic ankles and feet, or poor circulation.
Performance Features
Before ordering, use this size chart for an accurate fit – Sizing is based on Average US Shoe Size
- Small: Men’s Shoe 3-5.5, Women’s Shoe 4-6.5
- Medium: Men’s Shoe 6-9.5, Women’s Shoe 7-10.5
- Large: Men’s Shoe 10-13, Women’s Shoe 11-Plus
- Extra Large: Men’s Shoe 13.5-Plus
Colors | Black |
Sizes_Available | One Size Fits All |
Material/Fabric | 88% Polyester/12% Spandex |
Closure | Hook-and-Loop Adjustable Closure |
Misc | Grey Undervisor |
Sport | Tennis, Pickleball, Platform, Padel, Golf |
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