This shoe features awaterproof nubuck leather upper, certified by the Leather Working Group, combined with aGore-tex membraneto enhance moisture repellency to keep the foot dry over time. This model also usesrecycled polyesterfor the strap, mesh inserts and laces. In addition, the PU molded sockliner is made of 50% soybean oil, while comfort is enhanced by the presence of acompression molded EVA foam midsoleand the extended heel that cushions impact.