The Yeezy Quantum 'Quantum' represents Kanye West?âââ‚?s debut sneaker in the basketball space. This lifestyle edition features a knit upper with wavy cut-out strips that reveal a breathable mesh base underneath. The grey and white tones used on both layers are complemented by reflective accents, an off-white suede toe cap and solid black hits at the collar, tongue and heel. The mid-top is supported by a Boost midsole and a herringbone-tread rubber outsole.