Review on Balega Ultralight Athletic Running Wildberry by Neal Martin

I swear by Balega running socks and have worn them to marathons and Ironman events. However, this Ultralight Crew sock was not up to par. The left sock ripped at the heel after only 4 uses. At this price I expect much more durability. I would be impressed if Balega offers a replacement but I don't have time to return.