Flexible and lightweight, the Atlantic Optima Collection’s expandable luggage goes a long way toward changing the way you travel. The 2-bags-in-1 Dual expansion System offers room for more and more for your money. By allowing business and leisure travelers to pack up to 44% more, the convertible Uprights provide the largest expanded capacity in their category. The 22” piece in the collection expands to the volume of a 24”, and the 25” to a 27.”