Great reveiws on this fun and fast trail running shoe. Worn once for a 5.5 mile run. Slight discoloration on collar of shoe but like new otherwise. The Switchback 2 retains the more minimal stack height and flexibility of the original but gets Saucony’s new PWRUN+ TPU midsole in place of EVERUN, also a TPU but denser and heavier. Incorporated in the midsole/outsole is the woven rock plate also seen in the Peregrine 10, Xodus 10, and new Canyon TR.