Haglofs Rocker GT Walking Shoes 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.