AD145 is shaped like the head of a funnel, completely round with ridges lining the sides all the way around. In fact, its shape is intended to resemble that of an armor, hence its name. Despite what the latter part of its name might suggest though, Tracks such as 230 and GB145 outclass AD145 as a defensive Track due to its relatively light weight in comparison to GB145 and its diminutive stature when compared to 230, which makes it unable it to absorb hits as 230 does. With the introduction of BD145, this Track has definitely been surpassed in Defense. However, AD145 has actually proved to be better suited for Stamina in certain cases, due to the outward weight distribution it has compared to other top tier Stamina Tracks, thus making it top-tier in this area. It is also the Track of choice for comparative Stamina testing.