These all mountain ski boots for women with flex 80 are really hot. They can keep your feet warm even at the most cold days on the piste. The unique technology in this ski boot is the Custom Heat Pro. It can provide you with extra heat from 4 up to 18 hours due to the integrated battery (charger included). Adjust the heat on the button on the side of the liner in the top of the boot and you can charge the battery in a normal electricity output at home. This boot is also designed for easier entry og exit of the boot, and with 1.6kg pr. boot this is a lightweigth alpine boot as well. It has a pretty wide last of 104mm.