No Christys' headwear purchase is complete unless you have our signature Red Hat Box to store your hat.. This is our Standard size hat box - for one hat only. Suitable for Dressage, Top Hat, Bowler, and most styles with a narrow brim and average crown height of 5 5⁄8 inches.. Oval Shape:17cm High x 35cm (Short Axis) x 38cm (Long Axis). IMPORTANT INFO: Please read carefully the description of your hat to check the brim width will fit in our standard hat box.