Side view of Unisex OS1st Plantar Fasciitis no-show socks in all black – featuring targeted plantar fascia support, cushioned heel zone, moisture-wicking fabric, and low-profile design for discreet wear.
Side View of OS1st FS4 Plantar Fasciitis Sock – featuring targeted compression for plantar fascia relief, cushioned heel and arch support, and moisture-wicking materials for foot health.
Side View of OS1st FS4 Plantar Fasciitis Sock – featuring targeted compression for plantar fascia relief, cushioned heel and arch support, and moisture-wicking materials for foot health.
OS1st sock brand features with icons and text on a white background
OS1st care instructions and shoe size chart on a white background

Unisex FS4 Plantar Fasciitis (No Show) - Black

$25.99 USD
By Os1st
Size
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Experience science-driven comfort and relief with the OS1st FS4 Plantar Fasciitis No-Show Socks in Black. Specially engineered to help manage and prevent foot pain, these socks deliver arch and heel support exactly where it’s needed—while staying discreetly hidden inside your shoes.

Key Features:

  • Patented Compression Zone Technology® – Medical-grade targeted compression supports the arch and Achilles to relieve plantar fasciitis pain.
  • Ultra-Soft Fabric Blend – Made from breathable, moisture-wicking micro-nylon and lycra that keeps feet cool, dry, and comfortable.
  • No-Show Fit – Sits low on the foot for a sleek look that stays invisible under most shoes.
  • Seamless Construction – Reduces friction and hot spots to help prevent blisters.
  • Y-Heel & Anatomical Shape – Ensures a secure, stay-put fit during daily activities or workouts.
  • Light Cushioning – Adds comfort without bulk, making these ideal for athletic and casual wear alike.
  • Helps with foot conditions such as plantar fasciitis, heel pain, arch pain, swelling, poor circulation, blister prevention, achilles support, and general foot fatigue

Perfect For:

  • Individuals with plantar fasciitis, arch pain, or heel discomfort
  • Runners, athletes, healthcare professionals, and anyone on their feet all day
  • Anyone wanting low-profile, moisture-wicking socks with medical-grade support