Amazon.com : Under Armour Womens UA Glyde Softball Bag 。Under Armour Storm Utility Softball Backpack Bat Bag Cleats Girl\'s Women\'s New ** 21\" Length ** 17.5\" Width The Under Armour Storm Utility Softball Backpack is a large, Blue red white backpack designed for softball players. It features a zip closure, multiple pockets (8), and a water-resistant material made of polyester and nylon. The backpack is padded for added comfort and is compatible with UA Storm products. Perfect for girls and women, this Under Armour backpack is an essential equipment bag for any softball player.