The Blue Sports Trek NG Skate Guards are an anti skid walking skate guard. The outsole of the Trek NG Skate Guards are designed to reduce slipping when walking on wet or icy surfaces. Blue Sports incorporates a 3" wide nylon webbing on the bottom of the insole which gives the skate guard longer durability to cuts. The lining of the skate guard is water absorbing, promoting keeping your steel dry and help prevent rust build up. Finally, the Blue Sports Trek NG Skate Guard has an internal fastening system to make sure your guard stays in place, protecting your steel.