The UltraBoost 4.0 “Orca” is a popular colorway of the running shoe from the “Show Your Stripes” pack. The pack features bright white stripes on the cage set against dark backgrounds for a high-contrast display of the 3 Stripes branding. This colorway of the modern runner in black and white picked up the “Orca” nickname due to its similar look to an Orca whale. The solid black Primeknit upper is complemented with a black Boost midsole. The UltraBoost 4.0 “Orca” from 2018 was an instant hit thanks to its clean look and versatile, match-with-anything color scheme.