Side view of Unisex OS1st Active Comfort quarter crew socks in white and grey – featuring ergonomic arch support, padded sole for shock absorption, moisture-wicking fabric, and designed to relieve foot discomfort during daily activities.
Side View of OS1st AC4 Active Comfort Quarter Socks – featuring moderate compression for arch support, cushioned footbed for shock absorption, and seamless toe for irritation-free wear.
Side View of OS1st AC4 Active Comfort No-Show Sock – featuring lightweight breathable fabric, targeted arch compression for support, and cushioned soles for all-day comfort.
OS1st sock brand features with icons and text on a white background
OS1st care instructions and shoe size chart on a white background

Unisex AC4 Active Comfort (Quarter) - White

$14.99 USD
By Os1st
Size
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Elevate every step with the OS1st AC4 Active Comfort Quarter Sock in White—a versatile blend of athletic performance and everyday comfort. These socks are crafted from a premium micro-nylon and lycra blend to keep feet dry, fresh, and supported—whether you’re training, running errands, or standing all day.

Key Features:

  • Active Comfort Compression Zones – Light compression supports the arch and Achilles tendon, helping reduce foot fatigue and soreness.
  • Soft, Breathable Fabric Blend – Made with high-performance micro-nylon and lycra for moisture-wicking, quick-drying comfort.
  • Quarter Length Design – Offers added ankle support and coverage, perfect for athletic shoes and casual wear.
  • Medium Cushioning – Absorbs shock for extra comfort without adding bulk.
  • Seamless Toe Construction – Helps prevent blisters and irritation by minimizing friction.
  • Anatomical Fit & Y-Heel Design – Creates a secure, stay-put fit that won’t slip during activity.
  • Helps with foot conditions such as arch pain, sweaty feet, blister prevention, everyday discomfort, and general foot fatigue

Perfect For:

  • Runners, walkers, gym enthusiasts, and athletes wanting all-day support and breathability
  • Professionals or anyone on their feet for long periods
  • Active lifestyles needing moisture-wicking, cushioned quarter socks with secure compression