Unfold: 20 x 10 x 8 inches(26 x 20 x 50 cm) Fold: 7.4 x 1.6 x 5.9 inches(19 x 4 x 15 cm) The packable backpack is of 40L volume when unfolded, which is ideal for traveling. Its size can be adjusted as needed. The bag includes a built-in pocket; besides, on each side of the bag there is a multi-function pocket, which is convenient for you to pick up belongings. The ventilation design on the back of the bag will make your travel more comfortable. It will be a fantastic necessity for not matter outdoor sports or leisure activities in the city. About New Outlander® Since 1988, Outlander has built affordable, reliable backpack that enables everyone make travel easier and more fun. Outlander"s success extends across the globe, where they have become a leading designer and manufacturer of durable backpacks. If for any reason you are not happy with any product sold from our store , please do not hesitate to contact us and we"ll do our best to solve your problem quickly and efficiently! We take full ownership and responsibility for the quality of our products. New Outlander® is a registered trademark. New Outlander® products are only sold by authorized seller -- Galaxi Choice on amazon.com.