Thanks to interchangeable tongues (one stiff, one hinged for touring) and a sole that's compatible with every AT binding on the market, the Spirit 4's are this year's most versatile boot. 7.6 lbs; scarpa.com
Bonus: Smart touches include tour-friendly Dynafit tech fittings and lighter-weight thermo-moldable liners.
Bummer: Some testers wished the “stiff” tongue was even stiffer.