The adidas Yeezy Boost 350 V2 ‘Ash Blue’ carries a re-engineered Primeknit upper constructed from a blend of slate blue . grey and black fibers. A pale yellow hue distinguishes the post-dyed monofilament side stripe woven into the sneaker’s lateral side panel . delivering added breathability and an unexpected pop of color. The sock-like upper rides on a full-length Boost midsole . wrapped up in a semi-translucent rubber cage for improved stability and durability.