"Selected first-layer calfskin (selected full-grain calfskin, soft texture, giving you a comfortable foot experience; The pores are fine, the texture is natural, and the luster is transparent, reflecting the elegant style of a gentleman. ) Water-dyed cowhide lining (Wrapped in cowhide, treated with water-dying, the texture is soft, the pores are fine, sweat-absorbent and breathable, and can keep your feet fresh after long-term wear.) Italian VIBRAM Gumlite series rubber foam soles (In 1937, VIBRAM launched the first pair of rubber foam soles, which made history and became synonymous with quality and performance. The Gumlite series innovative sponge rubber formula is highly wear-resistant, about 30% lighter than traditional rubber, ergonomic, lightweight and comfortable.)"