A bag that can pack everything you need for the stable to showgrounds or the airport to hotel is the B Vertigo Helsinki Large Travel Bag.
This large packing and travel bag is made from strong waterproof fabric. It features a YKK closing zipper. The bold B Vertigo standard logo is embroidered on the side. The inside pockets are great for storing small items. There are inside pockets for storing items separately and it has a shoulder carrying strap.