The F1 LT is Scarpa´s lightest weight, versatile alpine touring boot. It is developed to perform in demanding uphill and downhill conditions. Compact and comfortable, this boot features an easy and effective closure system, providing guaranteed performance and comfort. User: experienced ski mountaineers who love fast uphill and technical downhill runs. CLOSURE SYSTEM FAST BUCKLE CLOSUREOne only buckle and a Velcro® strap with a referential graphic, which guarantees a rapid and precise closure. You can have two different fits suitable for both uphill and downhill, changing only the buckle position, and maintaining the same Velcro® closure, for a single and unique setting.REMOVABLE STRAPThe Velcro® strap closure provides the best wrapping on the cuff; it has a backward hook strap-holder, which can be removed if necessary.BOA® FIT SYSTEMThe Boa® Fit System delivers improved agility, response, and control and brings you closer to your equipment. The hidden guides allow a precise adjustment of the closure on every type of feet volume To get the most from your ski boots we highly recommend a complete boot fit and thermoforming of the liner with one of our professionally trained boot fitters.