The Scarpa T-X - another NTN boot - is a versatile option because it is also Dynafit compatible. How you like them apples? Its most identifiable feature as a tele boot is that it doesn't have a duckbill. Instead, with the NTN, the rounded front of the sole and the second heel, - a lip beneath the arch of the boot, are clasped by the binding. This creates a rigid interface to transfer energy and power directly to the ski edge. Other features include thermo Intuition liner, three buckles and mid-stiff flex.