Yeezy Quantum 'Frozen Blue' size US 7.5 in excellent condition. The adidas Yeezy Quantum ‘Frozen Blue’ applies a burst of color to Kanye West’s basketball-inspired mid-top. The layered upper features a bright blue RPU cage atop a jacquard knit upper, reinforced with synthetic suede at the toe cap. Black neoprene on the collar and tongue offers stretchy comfort, while a seamless heel counter is good for improved stability. Lightweight cushioning arrives via a Boost midsole reinforced with a semi-translucent TPU cage and a herringbone traction outsole underfoot.