Herron's Tack! They have blankets, sheets, etc but are by far the best for driving equipment. Mike and Kim have years of driving experience and are very knowledgeable. And willing to answer questions. Their equipment is top quality at reasonable prices! If I ask and they don't have it they will look for it for me.
And I know personally that they use the equipment they sell, if they don't like it themselves they don't put it in the catalog. Their trailer can usually be found at central shows and Nationals. They also train driving horses and give lessons.
www.herronstables.com
515-996-2834