Here's what other sites are saying:
Thorlos Lite Walking offers the most padded protection possible in a lightweight construction. CoolMax and stretch nylon run throughout the sock to provide superior wicking characteristics. Medium density padding is added to ball and heel for added protection. Lightweight padding in arch and lace pad provides protection and better fit. Level 2 Protection: Provides moderate protection for those activities that are somewhat strenuous but are not of long duration.
- Altrec Outdoors refers to the men's version