Here is a closer look at the speculated design elements of the sneakers: The upper features a gradient of grey shades. They transition from darker shades to light-bone panels. Shades of orange and ...
More information: Yanan Zhang et al, Full-gray optical trapping by high-order multipole-resonant gradient forces in structured light, Physical Review A (2024). DOI: 10.1103/PhysRevA.110.063517 ...