This innovative double boot was fused from decades of extended expedition experience. The composite Exo-therm upper outperforms traditional material choices and the full-length carbon fiber shank provides stiffness at a fraction of the weight. An EVA midsole absorbs impact, stretch cordura in the ankle and tongue eases entry, and a thermo inner lining customizes the fit. Stealth rubber and crampon compatibility round out this next generation of alpine fusion technology. Weight per pair: 6 lbs, 0 oz. (Size 8.5)