Dynafit ZZero 4 PX-TF Alpine Touring Boot

With its more-forgiving Rislan PowerStringer, the Dynafit Zzero 4 PX-TF Alpine Touring Boot offers all the comfort and fit of Dynafit's C-TF model, without the carbon reinforcements. Tackle long tours and sidecountry trips alike in this four-buckle boot. Touted as the lightest four-buckle on the market, the Zzero 4 PX-TF boots grant featherlight uphills and rewarding downhills. Mid-stiff Rislan material in the instep and Powerstringer efficiently transfers energy to your glides as you hike and hold firm during sketchy descents. The Zzero PX-TF Boot's Pebax tongue flexes smoothly and consistently as you pass your skin track on the way back down, and Dynafit's lightweight, thermo-moldable Thermoflex liner insulates your foot so your toes don't end up frozen at the end of your hikes.