Y-3 Kaiwa

Leather: Natural leather is a traditional material resulting from the tanning process of animal hides and skins, which occupies a key position in the footwear and haberdashery industry due to its mechanical resistance, breathability and aesthetic value. The specific reticular structure of the collagen fibres allows the material to adapt to the user's anatomy, resulting in optimum wearing comfort. As a hygroscopic material, the leather naturally regulates moisture and ensures air circulation. The appearance and functional properties, such as the degree of water repellency or texture, are defined by the specific type of technological processing, which include smooth finishes, suede or nubuck.

Neopren: A synthetic rubber (chloroprene rubber) that acts as a highly flexible and insulating material in footwear. It stands out for its ability to maintain thermal comfort even when wet and its resistance to water, oil and weathering. In the construction of shoes, neoprene is often used for ankle collars, tongues or inner boots because it adapts perfectly to the shape of the foot, does not press anywhere and minimises the risk of abrasions. Thanks to its softness and elasticity, it provides a "second skin" feeling, which increases overall comfort when worn in both harsh and wet conditions.

Rubber: The rubber sole is a traditional and highly reliable element in the construction of footwear, valued especially for its extreme mechanical resistance and grip. This contact layer is made of natural or synthetic rubber, which is characterized by its high density and elasticity. Due to its physical properties, it provides excellent traction on a wide range of surfaces, from smooth asphalt to unpaved terrain. In addition, the rubber is naturally waterproof and resistant to temperature fluctuations, ensuring stability and a secure stride in a variety of climatic conditions.