Smartwool PhD® Light features ReliaWool technology for improved durability in the heel and toe and the 4 Degree elite fit system, to keep the sock in place and give you all-sport versatility.
- ReliaWool Technology
- 4 Degree Elite Fit System
- Strategically Placed Mesh Ventilation Zones
- Flat Knit Durable Toe Seam
|Providing longer lasting protection, that helps to keep feet comfortable.|
|4-Degree Fit System:||Provides a performance fit by placing bands in specific areas - Ankle/Upper in step/Lower instep/Arch.|