The Nike LeBron 21 'Queen Conch' features a color-shifting textile upper in copper and rose gold, inspired by the spiral shell of a large sea snail. Laces feed through interior cables for midfoot lockdown, while quilted textile — also modeled after a shell's appearance — lines a perforated tongue marked with LeBron James' signature. Performance benefits include a lightweight Cushlon midsole with a Zoom Turbo unit in the forefoot and a bottom-loaded, large-volume Zoom Air unit in the heel.