The Yeezy Boost 380 'Onyx Non-Reflective' emerges with a neutral look on its lifestyle construction. Built with Primeknit, the upper appears in black and blue, with a translucent monofilament window cutting through the side wall. The shoe's sock-like upper is cushioned underfoot by a Boost midsole housed in a semitranslucent rubber cage, with a herringbone outsole providing traction.