Mexican-American clothing designer Willy Chavarria has apologized for an Adidas sandal that he created after being accused by Mexican authorities of “cultural appropriation” for copying an indigenous shoe design.

The sandal was created by U.S. designer Willy Chavarría for Adidas Originals. Its thin leather, braided straps bare an uncanny resemblance to the Mexican huaraches, but instead of flat leather soles, the Adidas version has a chunkier, sporty sole.

Adidas and designer Willy Chavarria have been accused of cultural appropriation for their latest collaborative shoe design. The Oaxaca Slip-On included design elements with cultural significance to the Zapotec Indigenous community in Oaxaca,