Aubrion Team Bum Bag Navy. The Aubrion Bum Bag is an efficient accessory to keep all your essentials at hand with you. Whether you\\\'re a groom at a competition, down at the yard or out riding, the Aubrion Bum Bag is a highly accessible way of ensuring all your bits and bobs are at arms reach for when needed. Designed with a double zip opening to ensure all your items are safely secured inside! Offering an adjustable clip and waist strap to fit all to your comfort.