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“Oh-ess-first”

Performance Socks and Compression Bracing

Relief, Prevention, Recovery

Stay active with OS1st performance socks and compression bracing made with our patented Compression Zone Technology and designed together with podiatrists, athletes, and real people.



Socks with Purpose

Find the sock that matches your purpose from condition specific (like our Plantar Fasciitis socks) to lifestyle specific (like The Pickleball Sock).

Compression Bracing

Do what you love without pain getting in the way with the flexible fit and support of our patented Compression Zone Technology.


As Seen On

Socks with Purpose | OS1st

Valentines Gift Guide

Looking for a gift that promotes health and wellness? Whether your loved one is an athlete, fitness enthusiast, or someone seeking to enhance their well-being, we have them covered.
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Merino Wool Plantar Fasciitis Sock

Gift ideas for First Responders from a Firefighter.

On any given shift as a California firefighter, we could find ourselves on the medical aids, fighting fires, dissembling car collisions, hiking to fight wildland fires, doing PT exercises, attending school assemblies, and even making water rescues. Through it all, we could be wearing the same socks. We need durable, comfortable, supportive, long-lasting socks. OS1st makes a premier product designed to prevent Plantar Fasciitis, Foot Fatigue, and Arch/Heel Pain.
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Elevate your pickleball game: OS1st gift picks from someone who plays pickleball

Elevate your pickleball game: OS1st gift picks from someone who plays pickleball

For those passionate about pickleball, these OS1st essentials - The Pickleball Sock, AS6 Performance Arm Sleeve, and Fresh Snaps - are the ultimate gifts or stocking stuffers. Crafted with precision and engineered for performance, they symbolize the perfect blend of support and comfort essential for dominating the pickleball court. Surprise your favorite player with OS1st gear and witness firsthand the enhanced performance and confidence they bring to their beloved sport. 
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