The VJ XTRM is made for rocky and technical trails where grip, stability, and durability are mandatory.
The aggressive lugs grip dirt, mud, rocks and anything you run on. The super tough upper is a custom kevlar and polyester weave which provides extraordinary protection and durability. The sole has cushioning units in the front and heel for comfort and a full length rock plate to protect you on tough terrain.
The XTRM was built for obstacle course racing, trail and sky running. Use it for tough, demanding terrain in all conditions. This shoe wants to get dirty.
The XTRM seems to run true to size for length. Some have felt that the toe area is a little snug. Going up 1/2 size seems to be the perfect fix. If you are between sizes, go with the larger size.