The Alta is a category B shoe, meaning it's supportive and rugged enough for uneven Alpine terrain, even when carrying a backpack. The sole is rigid enough to spread the load of sharp terrain features instead of creating a pressure point. As other Hanwag Bunion models, this shoe offers extra room especially at the base of the big toe. A great choice for both hikers with an actual bunion, but also those who need a wide fit. - Genuine Gore-Tex membrane: waterproof and breathable - Midsole structure enables a rolling stride - Made in Europe - The lace hook at the ankle "jams" the lace, allowing you to keep the front and shaft laces at different tightness if you so wish - Surface material: high quality leather The Alta is built with methods and materials that enable having the outer and mid sole replaced if you manage to 'walk through' them.