Water Resistant Material The backpack resist the entry of water into it to a certain extent, which means that the backpack receives a small amount of drizzle in a short period of time, and the water drops will soon roll down the fabric and will not penetrate the items in the backpack; otherwise, long-term exposure to rain or heavy rain will flood the contents of the backpack. Approx Dimensions:12.2" L x 5.3" D x 16.5" H. Material: the Multi Pocket Backpack is made of high quality lightweight Water Resistant Polyester. Applications: suitable for business trip, travelling, camping and other outdoor activities. Multi Pocket Backpack Large capacity, more stuff. The backpack is divided into four independently spaced layers with two side pockets. The items in the backpack can be placed more scientifically and orderly. Black USB Black Drak Grey Black Black Add to Cart Add to Cart Buying Options Buying Options Buying Options Customer Reviews 4.6 out of 5 stars 17,162 4.6 out of 5 stars 2,042 4.6 out of 5 stars 1,151 3.7 out of 5 stars 6 4.4 out of 5 stars 616 Price $20.99$20.99 $29.99$29.99 — no data — no data — no data Approx Dimensions 12.2 x 5.3 x 16.5 Inch 11.8 x 5.2 x 17.7 Inch 17.7 x 12.5 x 6.7 Inch 18.3 x 9.5 x 12.2 Inch 16.9 x 5.5 x 11.8 Inch Item Weight no data 1.32 lbs no data 2.53 lbs 0.4 lbs Capacity no data 18L 25L 35L no data Water Resistant ✓ ✓ ✓ ✓ ✓ Size no data Medium Large Large no data USB Charging Port no data ✓ ✓ ✓ no data