The upper is crafted from premium selected suede genuine leather, offering softness, breathability, and high durability with easy maintenance (a soft brush cleans most dirt). The lining features 2cm high-density sheepskin wool (sheepskin & wool integrated), providing excellent heat retention, moisture absorption, and odor control. The inner layer is thickened with long plush faux wool for added softness and breathability. The outsole is made of wear-resistant TPR, which is lightweight, flexible, slip-resistant, and shock-absorbent, maintaining a 60-degree non-slip performance on various terrains.