Our Hydro-Shield technology incorporates advanced waterproofing materials and processes to help keep feet dry. We start with waterproof leathers that are sealed during the tanning process, and then we seam-seal the footwear for additional protection. Partially gusseted tongues and zippers treated with durable water-resistant coatings further deter water entry. In products that have areas of textile, the footwear is only waterproof up to the point where leather is used.