[2][3] The shoe only lasted a couple of months on the market before being replaced in January 2012 by the GT-2170.

[4][5][6] Updates to the shoe featured a softer lining inside for better comfort.

The shoe features softened Gel and foam in the midsole for a softer feel and added deep grooves in the outsole.

[7] Stability in the shoe is provided by two units of Asics Gel that are found in the heel and forefoot and the DuoMax system, which is a hard piece of foam found in the mold of the midsole.

The main addition to the GT-2160 was the Guidance Line, a longitudinal groove carved into the midsole that guides the foot through the most efficient stride while also reducing weight.