The Nike Zoom Fly "Obsidian" is a colorway of the running shoe that released in April 2018. The model is a takedown version of the Zoom VaporFly 4%, a sneaker crafted by Nike to aid marathon runners in running the distance in under two hours. A breathable Flymesh makes up the upper of the Zoom Fly, while Flywire underlays provide additional lockdown and support. The Zoom Fly's sleek midsole design houses a carbon-infused nylon plate, Lunarlon cushioning, and React technology. This colorway sports an Obsidian Blue upper, white Swoosh branding on each side panel, volt green accents, and a cream midsole.