The Yeezy Quantum 'Quantum' Represents This 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.