The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. TANGCORLE vacuum carry on backpack made of 900D high-density coated oxford, it is not only waterproof and resistant but also scratch-resistant. You don't need to worry about your backpack will be wet in rainy day. Airback backpack which feature with vacuum sealed compartments. You can compress and release air by manually pressing or using an air pump. This large-capacity men's travel backpack can be expandable to a 50L liters, ideal for trips lasting 5-7 days. It features multiple independent compartments where you can separately store clothes, shoes, daily necessities, documents, and other personal items. The main pocket have shoes compartment and wet and dry separate pocket and the important vacuum pocket not only can save your space,but also can orderly store away your every goods,the laptop compartment can hold 17.3 inch laptop , so your don't worry about your laptop will be broken. Air backpack with vacuum seal and durable zipper , but the vacuum pocket uses high-density vacuum specific zippers, making it difficult to open, but this is to ensure the top secret protection performance of the vacuum pocket. Meanwhile,the laptop backpack have lot of human design,such as adjustable chest strap,breathable shoulder strap and luggage strap. Vacuum Compression Backpack No need to to worry about too much luggage. This vacuum travel packback save more space by maximizing the amount of air inside, allowing you to store more items. About the air pump instruction 1.when the red light is on,it indicates the battery less than 5%,should be charged in time 2.Long press 3 seconds to lock，Long press 3 seconds to unlock 3.Select only one suitable nozzle each time 4.Inflate: install one suitable nozzle to the inflationport,and connect to the products ,thenturn on the pump to start inflating 5.Deflate:install one suitable nozzle to the deflatioport,and connect to the products ,thenturn on the pump to start deflating Warm Tips: Do not store the battery in a fully discharged state for an extended period. Lithium-ion battery products should be charged at least once a month during storage. About our brand backpack functional comparison Vacuum backpack 50L Add to Cart Carry on backpack 50L Add to Cart Carry on backpack 50L Add to Cart Airback backpack 50L Add to Cart Carry on backpack 40L Buying Options Laptop backpack Add to Cart Business backpack Buying Options Customer Reviews 4.4 out of 5 stars 891 4.4 out of 5 stars 891 4.4 out of 5 stars 891 4.4 out of 5 stars 891 4.6 out of 5 stars 55 4.6 out of 5 stars 55 4.2 out of 5 stars 93 Price $129.90$129.90 $64.70$64.70 $64.70$64.70 $99.00$99.00 — $44.90$44.90 — Waterpoof ✔ ✔ ✔ ✔ ✔ ✔ ✔ 17.3inch laptop ✔ ✔ ✔ ✔ ✔ ✔ ✔ Dry-Wet Separation Pocket ✔ ✔ ✔ ✔ ✔ ✔ ✔ USB charge port ✔ ✔ ✔ ✔ ✘ ✘ ✔ Expandable ✔ ✔ ✔ ✔ ✘ ✘ ✘