Classic trails call for classic boots. Blending traditional all-leather construction with modern waterproof/breathable technology, the Pyrenees are built to keep feet dry and comfortable over long days and rough miles. European styling conceals a KEEN.DRY membrane that seals out precipitation while allowing moisture to escape. Features 4mm multi directional lugs. KEEN.DRY waterproof breathable membrane. Torsion stability ESS shank. Material Waterproof leather upper. Non-marking rubber outsole. Dual-density, compression-molded EVA midsole. KEEN.DRY waterproof breathable membrane. Removable metatomical dual density EVA footbed. Technologies KEEN.DRY - A proprietary waterproof, breathable membrane that lets vapor out without letting water in. Metatomical Footbed Design - This internal support mechanism is anatomically engineered to provide excellent arch support and cradle the natural contours of the foot.