In the new version IV, the Ultra Fastpack incorporate innovative waterproof and breathable technology FUTURELIGHT & trade; . Thanks to this nano-yarn membrane, it offers exceptional breathability so that you can benefit from a waterproof shoe to walk without getting hot or sweating, whatever the weather.
The Ultra Fastpack are designed specifically for demanding routes: the design of the sole is improved to adapt to undulating and rocky terrain, the Vibram & reg; Megagrip & trade; does just what its name suggests: it clings to any wet, dry, loose surface ... and the reinforced toe box and heel counter helps protect from impacts and bruises to the toes and ankle. .
They have OrthoLite & reg; X35 & trade; Hybrid & trade; They provide cushioning and responsiveness, and, together with the FastFoam & trade; midsole, maximize energy return for a much more efficient stride rate.Features:
|Outer Fabric / Membrane|
|Recommended Use||Hiking & Trekking|