adidas Yeezy BOOST 700 'Magnet' DelayedRelease: 9 September 2019
That's because the kicks never ended up hitting Yeezy Supply. The previously announced September 4 drop date ultimately came and went with the slick colourway nowhere to be found.
Fear not, though: a release has been rescheduled for Monday, September 9. And if you're interested, be sure to act with swiftness come drop day: since the colourway is a Yeezy Supply exclusive, you can bet that quantities are pretty limited.