The IROK ND is a combination of very aggressive tread tires and the all-terrain types. Unlike IROK, this tire has a non-directional tread design but offers the same performance. It uses the famous Three Stage Lug design that has scooped lugs, blade and molded siping, tighter lug pattern and sidewall traction features combined to give a smooth comfortable ride. Upgrade your rig with this IROK ND to get huge discounts and free shipping.