UPPER In water-resistant full-grain leather with Terracare® treatment and collar in Nubuck-coated leather, protective rubber toe cap. Terracare®, energy and water saving leather tanning treatment for reduced environmental impact. Being natural tanning, the appearance may change, accentuating or diminishing the buttoning effect. LACING Extended Lacing fastening down to the toe taken from the world of climbing, for maximum customisation and a comfortable fit, held in place by holes and eyelets. LINING GORE-TEX Extended Comfort membrane for maximum breathability and waterproofing.SOLE Symbios sole with dual-density EVA midsole and outsole in the Vibram® XS Trek rubber.