From the Manufacturer
The adidas Yeezy Quantum “Barium” is a brand new colorway of Kanye’s performance basketball-meets-lifestyle silhouette for Summer 2020. The Yeezy Quantum made waves earlier in 2020 when it debuted as the first official performance shoe in the adidas Yeezy fold, releasing it both on-court and off-court styles with reflective and non-reflective detailing. The upper displays a grey Primeknit base with dark grey marbled synthetic overlays.
Genuine Suede, Rubber