Smartwool PhD Pro Endurance Krar Print Crew Sock in Orange

Smartwool PhD Pro Endurance Krar Print Crew Sock


Smartwool teamed up with Smartwool athlete and ultrarunner Rob Krar to make a sock that can handle the longest trail runs. Introducing the PhD® Pro Endurance Krar Print Crew. This running sock features Indestructawool™ technology for enhanced durability, a Virtually Seamless™ toe for added comfort, and the 4 Degree™ elite fit system for a dialed, performance-oriented fit—so you can stay confident on the most rugged trails. And body-mapped mesh zones keep things breathable mile 1 to mile 100. Get ready to rack up more miles than ever before.


  • 4 Degree™ Elite Fit System For a dialed, performance-oriented fit with flex zone at ankle joint
  • Indestructawool™ Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfort
  • Made In The USA of Imported Yarn: 57% Merino Wool 38% Nylon 4% Elastane 1% Polyester
  • Shred Shield™ Shred Shield helps reduce wear from toes
  • Ultra Light Cushion The absolute minimum between you and your shoes.
  • Body-mapped mesh zones for added breathability
  • Virtually Seamless™ toe for enhanced comfort
  • 7.5" overall height
  • Machine Wash Warm Gentle Cycle.
  • Model Number: SW001539-823
  • Color: Tandoori Orange

Size Chart