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OS1st FS4 Plantar Fasciitis Socks - No Show, 1/4 Crew, Crew & Merino Wool

FS4: The first-ever Plantar Fasciitis that strengthens the foot structure and prevents Plantar Fasciitis symptom onset as well as overuse injuries. With precise targeted compression levels and cushioning, the FS4 Plantar Fasciitis sock features Compression Zone Technology® that is designed for proper foot support.

FS4 Merino Wool:
The OS1st Merino Wool Plantar Fasciitis socks are crafted with 100% Recycled Merino Wool and Ultra-Soft Nylon to give you natural moisture-wicking and increased temperature regulation. Combined with our patented Compression Zone Technology specially designed to target Plantar Fasciitis, makes this a must-have for your sock drawer; Keeping your feet warm and cozy while fighting plantar fasciitis.

Targeted Conditions
Plantar Fasciitis
Foot Fatigue
Arch/Heel Pain

Performance Features:
Medical Grade Support
Y-Gore heel for anatomical shape
Patented Compression Zone Technology®
Seamless Construction
Extra cushioning without the bulk
Anatomical left/right design for perfect fit
Anti-bacterial fabric

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Additional information


Lavender, Aqua, Black, Blue, Coral, Grey, Mint, Steel Blue, White


L, M, S, XL


Merino Wool, Merino Wool No Show, Merino Wool Crew, 1/4 Crew, Crew, No Show


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