The Nike LeBron 21 Conchiolin is a performance basketball shoe with signature Nike technologies that support high-energy movements and cushion against impact stress. In fact, support is one of the main themes of this sneaker. It finds inspiration in conchiolin, a protein secreted by clams and other mollusks that helps them build their strong shells and assists in the process of forming pearls. Other pearl-inspired elements include the durable leather upper, which comes in an iridescent white that mimics the inside of a clamshell or a pearl. In addition, crease lines look like the veining inside a clamshell, and the perforations are similar to holes found on some shells. In terms of technology, this sneaker boasts mesh details with 360-degree zonal cabling and responsive Zoom Air units in the heel. Our StockX experts like the extra-strong rubber outsole, which provides traction on various surfaces. The Nike LeBron 21 Conchiolin was released on December 19, 2023, and sold for $200.