6.5 x 3.9 x 3.74 inches

【Lightweight and Foldable】-This back pack weighing only 0.35 pounds,half the weight of a regular hiking backpack,it's incredibly lightweight. Folded down to the size of your hand, it even fits in your pocket, making it easy to carry. 【Water Resistant and Durable Material】-The selected high-density waterproof nylon material makes it an excellent men's waterproof backpack,which can effectively prevent rain from wetting the items in the backpack,and the anti-tear performance can effectively prevent rocks, branches from scratching the plain backpack,Durable. 【Large Capacity & Multi Compartment】-You would never think that this small travel bag for women has a capacity of 20L ,enough to accommodate clothes,shoes,umbrellas and other daily necessities,multi-layer compartments make it very convenient for you to organize things. Storage bag can not only store the folded backpack,it can also be used to hold a cup when the backpack is in use,effectively using the space.