A unique and luxurious interpretation of the original adidas Samba model, the Humanrace Samba is constructed with an all-around high-end leather upper, leather lining, and leather shoelaces sourced from ECCO Leather, a world leader in innovative and premium leather.ECCO Leather’s water-saving tanning technology saves 20 liters of water per hide, resulting in a higher color fastness and better performance.Sizing guidance: recommend sizing up by half a size.