Curious where you are from the have heard than called "Navajo brim"? Truth is the Californios and Spaniards prior (starting in 1519) were making and wearing flat hats (friar's/padre's hat) for centuries and no doubt introduced them to the Navajo. There were both felt and straw versions from day one. Using hats of the American cowboys are still influenced by the land they work and it's weather, and often as not today, the style of horsemanship they practice. "Texas Tacos", "Montana Peak" and Californio "Vaquero" hats are common today. As a old Great Basin cowman told me some time ago, "I ain't never seen a flat hat around here till 20 years ago." Still, flat hats aren't common even on modern California ranches. And Texas? Well it is Texas. Always a black sheep in there with them Tacos hats What is a "Taco hat? If your ears can get sun burnt, you are wearing a silly ass Taco hat! Make sure you're always headed into the wind pard!