12.2 x 7 x 3.5 inches (L x W x H), which means so tiny and slim, ideal for your usual carries. Enough space that you can fit your on-the-go must-haves inside, such as key, cellphone, book, power bank, and other essentials. Can be used as messenger bag / shoulder bag / crossbody backpack / casual daypack / sling bag / chest bag / travel bag / working or business bag, suitable for office, school, outdoor, business and other occasions.