When it comes to running socks, we pull out all the stops to keep making improvements on our products. With brand-new Shred Shield technology to help improve wear in the toe box, our PhD® Run Ultra Light Micro socks feature the 4 Degree elite fit system and our Indestructawool technology for a dialled-in fit and improved durability.

Indestructawool technology for enhanced durability
4 Degree elite fit system for a dialled, 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

45% Merino Wool 50% Nylon 5% Elastane

Weight 0.1 kg

Black, Grey


Medium, Large, X-Large


There are no reviews yet.

Be the first to review “Smartwool PhD Run Ultra Light Micro”