These NOAA (National Oceanic & Atmospheric Administration) flags feature a printed design on a heavyweight nylon fabric and feature a nylon header and 2 brass grommets.
They are available in several sizes.
Made in the USA
The current NOAA service flag, normally displayed at the masthead of the forwardmost mast as a distinctive mark of a NOAA vessel in commission, was adapted from the Coast and Geodetic Survey flag by adding the NOAA emblem, a two-tone blue circle with the silhouette of a seabird in white, on the center. On single-masted vessels, the service flag flies immediately beneath the commission pennant or personal flag of a civilian official or flag officer. NOAA vessels display the national ensign and union jack in the same manner as those of the Navy and Coast Guard, and follow the movements of the senior Navy or Coast Guard vessel if present together in the same port.