The Yeezy Boost 380 'Blue Oat Non-Reflective' utilizes a sock-like Primeknit upper in a complementary blend of beige and orange tones. The sneaker's signature translucent monofilament window stands out in a contrasting blue finish . complete with perforated detailing for improved breathability. The one-piece build rides on a full-length Boost midsole . surrounded by a semi-translucent cage and reinforced by a gum rubber outsole.