Celebrate South Florida football with the Miami Dolphins Riddell Speed Flex Midi Helmet. Officially licensed and measuring 7.5 inches tall, this collectible features Riddell’s new Speed Flex design with an SF-2BD-SW facemask, chinstrap, and built-in visor — a first for licensed helmets. The Dolphins Speed Flex Midi Helmet is the ideal size between mini and full replicas, making it perfect for display while representing Miami’s iconic aqua and orange tradition.