The Colt is good for an oval or a rounder head, but not a long oval. The crown is 4-1/4", and the brim is 4".  Bangora is a beautiful, durable material. The flex sweatband helps make this hat comfy and absorbs sweat. You will love how it feels on your head. If your hat is a little big, it's so easy to tighten it using the sizing tape we provide with every order.  This is an awesome high quality cowboy hat and it's covered by our Lifetime Quality Warranty. Not to mention our amazing 5-star customer service.