Sire is made from full grain leather and is fully waterproof, equipping wearers to keep going at full pace no matter what the elements. The seams are sealed to keep the water out so that your feet stay dry. Fastening:Lace-up Material Composition:Leather/Other/Other Waterproof Nubuck Upper. Nylon Mesh Lining. T1153 Moulded Rubber Sole. Lace-up Fastening.