In ski boots, comfort and performance often go hand in hand you can't ski well if your feet feel terrible, so it's important to get the fit dialed in, and no boot does it better than the Salomon X Pro 90 Women's Ski Boot. It boasts top-of-the-line customization courtesy of a heat-moldable 360 Custom Shell and My CustomFit 3D Performance Women's liner, so you can get a personalized top-to-bottom fit that'll have you cruising around the mountain from first bell to last without the need to stop in the lodge and let your feet come back to life. The last width can expand a full 6mm, from 100mm to 106mm, so even the widest-footed skiers can find a comfortable fit, and the 90mm flex is sturdy enough to ski the whole mountain but doesn't require aggressive technique or heavy input. Salomon also designed the X Pro 90 specifically for wider modern skis, with a 24mm oversized pivot and Twinframe construction that keep the boot laterally stiff so you can control your edges easily and precisely. Twinframe, which maps stiffer and softer PU throughout the boot, also makes the X Pro 90 easy to slide on and off and gives you sensitivity and control where you need it, so you don't need to crush your toes to ski well. There's even a screw cuff adjustment, which helps you fine-tune the lower-leg fit to reduce pinching and slop, a wide and low calf that's cut to fit women's legs, and an adjustable flex screw that lets you stiffen or soften the boot's flex by a few points depending on how you're feeling.