Designed for use on high mountain terrain and at high altitudes, where warmth and grip are essential, these are insulating technical boots for the harshest alpine conditions in the world. Suitable for use on high inclines and steep mountainous areas, these boots benefit from an innovative triple laminate lining known as Synergy which provides high levels of comfort. Insulated using an Ibi-Thermo 9mm footbed, the Nepal Extreme are warm from the toe to the ankle, the 3mm water repellent Idro-Perwanger leather provides exceptional protection from water, ice and snow__ For ice climbs and technical guide routes, they are compatible with step-in crampons, whilst the HP3 Midsole ensures your comfort - even in the toe box - is never compromised. The Nepal Extreme are rigid and technical enough to tackle the most challenging alpine peaks. Removable EZ FLEX tongueEZ OUT pull loop for unlocking of the lace lockRemovable insulating footbed3+ mm water-repellent Idro-Perwanger leatherPrimaLoft Silver liningInsulating Ibi-Thermo 9 mm insoleVibram Impact Brake System