Injinji Ultra Run Crew

Injinji Ultra Run Crew

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Injinji Ultra Run Crew is Injinji's most cushioned crew running sock , designed for long distance running, marathons and ultra races where feet are subjected to repeated impacts over many hours. With extra terry padding in both the footbed and toes, the socks provide effective shock absorption and protection on both asphalt and technical surfaces.

The patented five-toe design separates each toe individually, eliminating skin-to-skin friction—one of the leading causes of blisters and hotspots during long runs. When the toes are allowed to splay and work naturally, balance, stability, and the foot’s overall performance are improved, contributing to a smoother, more efficient running style.

The Ultra Run Crew is made from a durable blend of COOLMAX® EcoMade fibers , nylon and elastane, which effectively wicks away moisture and helps keep feet dry even when the pace and heat increase. Ventilating mesh zones across the instep contribute to good breathability during long and intense workouts.

The crew-length ribbed shaft provides a snug, ergonomic fit that stays securely in place while helping to keep dirt, gravel and debris out – ideal for both road and trail. The result is a toe sock that combines maximum comfort, durability and reliable blister protection for runners who want to go the extra mile.

Features & Benefits

Toe socks for marathons & ultra running

Five-toe design – effective protection against blisters and chafing

Extra terry padding in toes & footbed – maximum shock absorption

Crew cut with ribbed shaft – secure fit and debris protection

COOLMAX® EcoMade & mesh panels – efficient moisture transport and ventilation

Material

approx. 67–68% nylon

approx. 28–29% COOLMAX® EcoMade (polyester)

approx. 3–5% Lycra®/elastane
(material composition may vary slightly depending on color/version)

Suitable for

Marathons, ultras, long runs and high training volume – especially for runners who prioritize maximum cushioning, comfort and reliable blister protection over really long distances.

Care instructions

Wash in cold water on a gentle cycle and air dry to preserve function, fit and longevity.