Check the listing for details. Baja Blast University Mountain Dew Hat. Condition: New. Listed at 75.00 USD. The Baja Blast University Mountain Dew Hat is a collectible advertising item featuring the popular soda brand, Mountain Dew. With a theme centered around soda, this unique hat is sure to be a standout piece for any Mountain Dew enthusiast or collector. Perfect for showing off your love for the brand or adding to a collection of Mountain Dew memorabilia. Grab one of these hats to add a touch of soda-inspired style to your wardrobe or display.