One of the standout features of Injinji socks is their five-toe design, which completely eliminates skin-on-skin friction between toes. This unique structure helps prevent blisters and hotspots, common issues during endurance sessions. Linear knit lines across the underside of the foot enhance arch support, improving fit and stability during movement. Plus, a ribbed crew height helps shield the lower leg from dirt and debris.

Breathability is another priority in the Ultra Run Crew. Light compression works alongside strategic mesh zones to increase airflow across the foot and up the leg, helping to regulate temperature and reduce sweat build-up. While the standard version includes a ribbed leg, the Women’s version incorporates mesh waves for enhanced cooling and a tailored fit for the female foot.

Whether you’re logging miles on the pavement, tackling trails, or grinding through a gym session, these socks are made to go the distance. The blend of comfort, protection, and moisture management makes them a must-have for any endurance athlete.

Injinji’s patented five-toe design wraps each toe in moisture-wicking fabric to eliminate skin-on-skin friction, helping to prevent blisters and allow your toes to splay naturally. This improves overall foot stability and muscle engagement with every stride. The midweight terry cushioning throughout the foot absorbs impact, while arch support bands and mesh zones provide a breathable, secure fit. The crew height protects against trail debris, making them ideal for rugged or long-distance use.