Alejandro Q.wrote a review of Dynafit X4 Speed MTN Sock on August 19, 2015
They tear easily. Worst of all they cut off circulation. I'm a size 29.5 boot and the large sock runs very very small. I use Dynafit Vulcan boots which are amazing. I'm a Dynafit lover but this product is a no go. I had to give it one star in order to post my review but I would give it a zero star rating.