Water Repellent Upper - Polyester and non woven overlays, protects the shoe from becoming saturated with water.,Breathable Mesh Upper - With synthetic durable and lightweight overlays, allows the foot to breath to increase comfort.,GORE-TEX Extended Comfort Lining - Complete protection from water penetration.,Ecsaine Heel Collar Lining - For comfort and greater durability.,Tongue Gusset - Prevent debris from entering the shoe.