Scarpa Universal Liner
Here's what other sites are saying:
It is called "Universal for a reason; it will upgrade any ski boot. It's got Intuition Ultralon foam for warmth, weight savings and resistance to packing out. A wrap-design maximized volume control, providing world class fit and performance, while keeping your feet warm on the coldest of days. Plus, at 15 oz a pair, they will lighten your ski boots by a significant margin, which is ideal for long days in the backcountry or bootpacking around your favorite resort.
Light, warm, comfortable, and compatible with any boot on the market, the Scarpa Universal Liner will take your boot from decent to downright awesome. Made of heat-moldable Intuition Ultralon foam, the Universal can be easily tweaked to fit your feet to the extent that you can even forgo an insole, if that's what you're into. The wrap-style design provides top-shelf fit, flex, and power for touring and skiing lines, and a pair weighs under a pound, so they'll help you shave ounces without sacrificing performance and comfort.
A Bent Gate staff favorite the Universal Liner offers ultimate comfort and warmth Softer and shorter than the traditional Alpine model the Universal liner is ideal for smaller shells and large calf situationsFeaturesSupportive Ultralon foam is used in medical orthotics no footbed requiredOverlap closure provides continuouis pressure for ideal driving power and maximum volume controlQuickdrying lining