With all of the features that the PhD® Run Ultra Light Micro offers, your newest technology may be in your sock drawer. Indestructawool™ technology provides you with enhanced durability, while a 4 Degree™ elite fit system makes for a performance-oriented fit. And Shred Shield™ technology reduces wear and tear from your toes. It's breathable, comfortable, and built to help take you farther.
4 Degree™ Elite Fit System
For a dialed, performance-oriented fit with flex zone at ankle joint
Mesh ventilation zones provide optimum moisture management and maximum breathability
Seamless construction provides support with stretch for mobility and comfort
Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfort
The absolute minimum between you and your shoes.
Indestructawool™ technology for enhanced durability
4 Degree™ elite fit system for a dialed-in, performance-oriented fit
Shred Shield™ technology reduces wear from toes
Body-mapped mesh zones for added breathability
Virtually Seamless™ toe for enhanced comfort
Achilles tab designed to prevent sock from slipping down into footwear
Weight: 0.064 lbs
45% Merino Wool 50% Nylon 5% Elastane
Machine Wash Warm. Wash Inside Out. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.