Compared to the Pro version, the Tecnica Zero G Guide Ski Boots add a few more grams and have a different liner, coming in at a stated 110 flex (though testers have found it very similar to the "130 flex" Guide Pro). Supremely versatile, with the potential to be a one-boot quiver for skiers who split their ski time between lifts and touring, the Tecnica Zero G Guide Ski Boots proved a winner in their inaugural season and deserve consideration.