This is the first X Pro W model made with an integrated heat system. Women are more likely than men to suffer poor circulation in their extremities, making the X Pro Custom Heat W a boot worthy of close consideration. The heat system has 3 settings and a long single-charge life, with no external battery pack.
The extra $200 cost at retail is roughly the same as buying and installing an aftermarket device. Bear in mind the heat feature isn’t being applied to just any boot, but to the X Pro 90, with its nearly infinite fit versatility.