SickFit Compression Light Weight PT Sock | 670-1 Compliant Performance Fit

From the trail to the track. The starting line to the finish line. Mile 1 to mile 100. One sock built to go the distance.

The SickFit PT Sock is the most versatile performance sock we make. Compression-engineered for runners who log serious miles, built light enough for speed, and durable enough for the people who earn their miles in uniform. Pavement, dirt, track, trail, this sock was built for all of it.

Miles-First Construction Lightweight, breathable, and compression-built from the ground up. Graduated compression and reinforced arch support work together to reduce foot fatigue, keep circulation moving, and protect against the breakdown that comes with high-mileage wear. Whether you are on mile 1 or mile 100, your feet should feel the difference.

Built for Runners Low-bulk construction sits clean inside running shoes without bunching or shifting. Moisture-wicking fibers pull sweat away fast, keeping feet dry and blister-free through long runs, trail sessions, intervals, and race day. The compression fit hugs the arch and ankle without restricting movement so you can focus on the run, not your feet.

Built for Ultra Distance When the miles stack up, so does the damage. This sock is engineered for the long haul, extended compression support, anti-fatigue arch construction, and antimicrobial fabric that stays fresh through hours on the trail. Built for runners who do not stop when it gets hard.

Built for PT 670-1 compliant and built to perform through every formation run, PT session, and training block. Lightweight enough to move fast. Durable enough to keep up with the schedule.

Moisture-Wicking and Antimicrobial Temperature-regulating fabric keeps feet comfortable across conditions and distances. Antimicrobial construction stays fresh through back-to-back training days, long races, and everything in between.

670-1 Compliant Meets Army Regulation 670-1 uniform standards. Available in regulation-approved colorways for military and law enforcement wear.

Built For Runners of all distances. Ultra marathoners. Trail runners. Pavement runners. Military and law enforcement personnel logging PT miles. Anyone who takes their miles seriously.

Veteran-owned. Miles-tested. SickFit.