The maximum breathability training sock.

A staple for training, and perhaps the most important–if your feet are blistered and miserable, your workout won’t work. The Filson x Ten Thousand Training Socks are engineered for extreme athletes who work hard, day in and day out. They feature strategic cushioning, compression ribbing to fight foot fatigue, and anatomical arch support. Because your feet are shaped differently, these training socks are ergonomically cut for left and right feet. Treated with silver ion threads to kill bacteria, they’ll remain odor free.