Injinji Ultra Run Crew Socks

Color: Obsidian
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Keep your feet comfy for the long haul. With cooling mesh panels and targeted cushion to soften impact, the Injinji Ultra Run crew socks offer peak performance for marathon and ultrarunners.

Location Image of color ObsidianLocation Image of color ObsidianLocation Image of color Obsidian
Location Image of color Obsidian


  • 5-toe design helps prevent blisters by wicking moisture and reducing skin-on-skin friction
  • Crew height with rib-knit cuffs fits securely, sealing out dirt and debris
  • Terry cushioning is integrated throughout the bottoms of the feet and toes
  • Toe separation allows toes to align and splay naturally for total foot utilization
  • Integrated mesh tops provide ventilation and breathability
  • COOLMAX® EcoMade fibers wick away sweat and keep feet cool
  • Machine wash in cold water on a gentle/delicate cycle; line dry


View all Injinji Men's Running Socks

Technical Specs

Best Use



67% nylon/28% COOLMAX EcoMade polyester/5% LYCRA spandex

Sock Height


Sock Cushioning

Medium Cushioning

Moisture Wicking





Contains recycled materials

Size Chart

U.S. Men's5 - 7.58 - 10.511 - 1313
U.S. Women's6 - 8.59 - 11.512 - 14
EU37 - 4040.5 - 4444.5 - 4747.5

Sizing Notes

For socks, please use shoe size.

2 reviews with an average rating of 5.0 out of 5 stars

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