Hickory, N.C. — Nov. 17, 2025 — OS1st®, the fastest-growing performance sock brand in U.S. specialty retail, is proud to announce its multi-year sponsorship of the California International Marathon (CIM), one of the premier races in the United States and a cornerstone of global running culture.
As the Official Sock Sponsor of CIM through 2027, OS1st joins forces with an event recognized around the world for its tradition, community spirit, and commitment to excellence in the sport of running. The partnership reflects a shared mission between OS1st and CIM: to support every runner’s journey — from first steps to finish line — with purpose-driven innovation and comfort they can feel in every stride.
“CIM represents everything we believe in at OS1st,” said Josh Higgins, President of OS1st. “It’s more than a race — it’s a gathering of passionate athletes, dreamers, and everyday movers chasing something bigger than themselves. We’re honored to be part of an event that celebrates endurance, connection, and community on a global stage.”
As part of the sponsorship, OS1st will provide its Socks with Purpose® line to athletes and participants throughout race weekend. These products, designed with proprietary Compression Zone Technology®, deliver targeted support, superior moisture management, and blister prevention — essential performance features for marathon training and recovery.
The California International Marathon, founded in 1983 and hosted by the Sacramento Running Association, has earned distinction as one of the fastest and most competitive Boston Marathon qualifying races in the world. Each December, it draws thousands of elite athletes, recreational runners, and spectators from around the globe, transforming California’s capital into a hub of endurance sport and celebration.
“With this partnership, OS1st continues its mission to champion runners and the independent retailers who serve them,” said Scott Abbot, Executive Director of the Sacramento Running Association. “Together, we’re creating experiences that empower athletes to run comfortably, recover stronger, and live on purpose.”
OS1st will also activate on-site during the CIM Expo and Race Weekend, offering product education, athlete support, and interactive experiences that celebrate the running community’s collective drive and resilience.
About OS1st®
OS1st is a North Carolina–based performance brand dedicated to engineering socks and compression products that deliver Relief You Can Feel®. Built on medical-grade design principles and sports innovation, OS1st products are trusted by thousands of independent retailers, podiatrists, and athletes worldwide. From preventing blisters to improving circulation, OS1st helps people move comfortably and confidently — every day.