SCARPA Quattro Ski Boots Review

Combining top-tier alpine performance with high functionality for touring, backcountry travel and walking, the new SCARPA 4-Quattro XT and SL hold appeal for a wide range of people - everyone from expert-level alpine skiers and snow professionals to everyday skiers looking for versatility paired with power, mobility, light weight and security for moving on your feet.
“The 4-Quattro boot is SCARPA’s first line of ski boots fully focused on the alpine-ski world, so we made sure to build a boot that’s performance-oriented, light and technical enough for the best skiers in the world, but one that’s comfortable and versatile for everyday skiers who want a boot that spans a big range of potential uses,” said Massimo Pellizzer, ski boot category manager for SCARPA.
As a category leader in ski boot performance, SCARPA puts decades of experience to work in the 4-Quattro series, and also factored in sustainability with a shell and cuff made from renewable, plant-based sources.
Key to the Quattro’s performance is a lower-volume, performance-minded fit, an over-injected carbon insert for enhanced precision and torsional rigidity, and a low stand height that improves power transmission to skis.
A major differentiator in these boots is the first full-coverage GripWalk sole, which improves traction and security for working snow professionals or anyone who spends a good amount of time walking in their ski boots. The design is compatible with GripWalk-certified downhill or ski-touring bindings.
The Quattro’s Alpine Axial Hybrid construction allows for the precision and energy transmission of a classic overlap ski boot while also adjusting to fit a wide range of foot shapes and allowing easier entry into the boot.
A friction-free magnesium Speed Lock 4 ski/walk mechanism with 61 degrees range of motion is extremely light yet extremely strong, balancing weight with power.
Stock features include a thermoformable Intuition liner and integrated Recco searchability.
The men’s and women’s 4-Quattro XT is made with plant-based Grilamid Bio and offers a flex index of 130 for men and 115 for women, with weights of 1,500 grams (27) and 1,345 grams (25). The XT versions also come with an integrated Booster Strap.
The men’s and women’s 4-Quattro SL is made with plant-based Pebax R-new and offers a flex index of 120 for men and 100 for women, with weights of 1,430 grams (27) and 1290 grams (25).
SCARPA builds on its use of sustainable materials with plant-derived materials in the 4-Quattro family, which it has previously used in other boot programs, including the top-selling Maestrale and Gea. Grilamid Bio and Pebax Rnew are derived from the castor bean plant, which reduces fossil fuel use and emissions in the process of moving from raw to usable material. In addition, castor beans can be grown on arid land where other agriculture typically isn’t possible, so it doesn’t compete with food production and also offers an economic activity in places where other agriculture doesn’t take place.
The boots retail for $799 for the XT, $699 for the SL.

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Can you compare the fit to Scarpa F1? I have such narrow feet that the F1 are like the only touring boots that somewhat fit properly but I would like something burlier.