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