Thorlo Running Socks - Thick Cushion Mini-Crew with THOR-LON
Here's what other sites are saying:
Extra THORLON provides a maximum running density padding to provide better durability, protection against shock, impact and shear forces. THORLON top with added spandex provides protection and better fit. Lightweight padding in arch for better fit and arch support. Level 3 Protection: Provides the Maximum Protection for the most rugged and challenging activities and weather conditions.
- Altrec Outdoors