This is a rigid, four-sided, collapsible Sunhood for the Shogun Flame and Ninja Flame Monitors, in black, from Atomos. It has a pleatherish feel to it but is solid.
This sunhood is designed to secure to the 1/4"-20 threaded hole on the top of the monitor using an included thumbscrew. The thumbscrew offers a 1/4"-20 female threaded hole on top so you don't lose the monitor's threaded hole. A viewing cover is also included that magnetically snaps to the sunhood to provide an even more concentrated viewing window.