iNaturalist & Citizen Scientist Hats

To an iNaturalist user, the weeds in the lawn are data. iNaturalist turns a phone photo of a beetle, a slug or a sedge into an observation that the community can confirm to research grade, and the City Nature Challenge scales the habit up. The 2026 Challenge counted 107,906 participants in 747 cities across 62 countries, with 2.88 million observations and 75,155 species recorded in four days. The users are loud about wanting merchandise: the iNaturalist forum's thread asking for a hat runs past 225 posts, and the forum's list of signs you are seriously into iNat includes letting weeds grow so you can identify them and making your spouse stand still while you take one more angle of a stinkbug on her shoulder. These iNaturalist and citizen scientist hats speak in that voice: research grade as a badge of honor, a lawn as a survey site, a slow walk of 1.2 miles in 3.5 hours when four observers share the path, and a county's top identifier of little brown moths. Staff once estimated about 800 iNaturalist shirts existed worldwide, so a hat that jokes about the habit is rare. Every design is custom embroidered on an unstructured dad hat. Wear one to your next bioblitz, or give one to the friend who photographs every weed.