Color: dark blueFastening: VelcroSpecifications: Geox Respira technology – combines perforated sole and special breathable waterproof membraneMaterial: outer part - genuine leatherinner part - sheepskin insole - sheepskinsole - synthetics Leather Properties: Leather is a natural material of animal origin, which has its typical properties, such as scars, pigment spots, abrasions or wrinkles.