Engineered to enhance your run or your ride, the HiFi is a lightweight performance sock built designed for speed, support, and breathability. With targeted cushioning (courierPOD™ technology) to reduce impact on the forefoot, arch, and Achilles, plus a vented “Sunroof” panel for optimal airflow and natural toe splay, the HiFi helps you stay cool, comfortable, and blister-free on every mile. Anatomical fit and graduated compression deliver locked-in support without restriction. The HiFi was designed to help you experience everything in your run and ride, staying connected, energized, and in perfect flow with every step.