OS1st FS4 Plantar Fasciitis No Show (1x) (Black)

The first-ever Plantar Fasciitis sock featuring award winning, patented FS6® technology. A technical performance no show 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 No Show 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

Medical Grade Support

Y-Gore heel for anatomical shape

Seamless Construction

Extra cushioning without the bulk

Anatomical left/right design for perfect fit

Anti-bacterial fabric

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