The women's version fits boots sized 23-25.5, using short rods, and a slightly smaller heel bail. You can get short rods for the mens version, too. Other than that, it's blue vs. red, and the price that is different.

The heel elevators are also a different size. The men's heel elevators are 65mm/100mm and the women's are 65mm/80mm. Backcountry has this listed incorrectly on their website right now, but you can go to the Voile website for correct product info.