The long-lasting protection, comfortable leather fit, and comfortable support of the Kamik® William boot will keep you steady all season long. Waterproof seam-sealed construction keeps out the wet elements. Waterproof leather upper.Waterproof gusset tongue.8mm Zylex® removable liner with 97% recycled material. D-Ring lacing system for a secure fit. Waterproof and lightweight synthetic RubberHe shell. SNOWBOB synthetic RubberHe outsole offers excellent traction in snowy conditions.