Official Diamondbacks jackets are here at Fanatics.com so you can show your support for your team throughout the year. No matter the weather, an authentic Arizona Diamondbacks jacket will keep you warm and game day ready. Our Arizona Diamondbacks jackets are available in a variety of styles for every fan, including windbreakers, Diamondbacks starter jackets, Arizona Diamondbacks throwback jackets, full-zip jackets, pullover jackets and much more. A new Diamondbacks varsity jacket would make a great addition to your game day wardrobe. Every fan can find a MLB Diamondbacks jacket that fits their style when that shop at Fanatics.