MiaMily Carry OnNow in a smaller, carry on friendly size, the mia mily luggage bag universally configures into a ride on suitcase for children or a portable seat for adults, allowing your child to quickly and conveniently travel with you atop the suitcase or providing a resting place for adults when standing for long periods. When travelling without a child, the seat on this spinner suitcase can be used to safely store a diaper bag, travel bag or a briefcase.