Here's what other sites are saying:
For trails paved and unpaved alike, this new midweight running sock endures anything you re willing to tackle. Fiber blend aids with moisture management via polypropylene fibers to keep your feet dry and blister-free on long hauls. Nylon fiber, Friction Free , at toes and heel decreases friction and heat built-up to prevent blisters in these crucial areas. Low-profile fit.
- The North Face refers to the men's version