The KD-131 Hat Box is a great product made for carrying or protecting hats or helmets. This can is the original K&D hat can. It will fit up to a 4 1/4" hat, and come with a mirror an the option of an accessory case. The accessory case is great for hat sponges, brushes, bobby pins, hair ties, and many more things. These can have been proven to be tough and durable to ease your mind when traveling or just storing hats.