the HiFi sock

Lightweight feel with targeted cushioning. Engineered to create a cooler, drier microclimate around your foot. CourierPOD mapped cushioning and airflow system provides targeted impact protection without bulk or overheating. Knit "sunroof" on toe box that allows natural splay and prevents toe cramping. Lightweight locked-in feel meets targeted cushioning. 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 on your run, cycle, or ride, staying connected, energized, and in perfect flow with every step. Size Guide Small - Women's 5 - 6.5 / Men's 4 - 5 Medium - Women's 7 - 9.5 / Men's 6 - 8.5 Large - Women's 10 - 12.5 / Men's 9 - 12 XL - Men's 12 - 14