4-Quattro SL Alpine Touring Ski Boot – Men's

Built for backcountry skiers who demand efficiency on the way up and confidence on the way down, the 4-Quattro SL is our top pick for serious alpine touring. A high-range walk mode takes the punishment out of long skin tracks, while a stiff ski mode locks you in the moment you drop in.

• High walk-mode range of motion reduces leg and ankle fatigue on extended uphill approaches
• Lightweight shell construction keeps weight low for efficient climbing without giving up structural integrity on descents
• Quick-transitioning stiff downhill mode means you're locked in and ready to ski as soon as you point downhill
• Sized in mondo point (27.5) for accurate, repeatable fit regardless of sock thickness
• Men's-specific foot geometry delivers a precise fit that eliminates hot spots on full alpine touring days