The main zipper is designed to be tight and requires some force to pull, but the zipper is made of durable BBS zippers, so you don't have to worry about it breaking. The handles provide flexible carrying options, and the vacuum travel backpack also comes with trolley straps to attach it to your luggage for a more convenient travel experience. Install one suitable nozzle to the deflatioport,and connect to the products ,thenturn on the pump to start deflating MARKETRON Convenient and Thoughtful Design Water Resistant, Integrated Weight Handle MARKETRON newly upgraded vacuum seal backpack Mark Ryden Airpack Backpack Vacuum Backpack Merchant Video The MARKETRON Airpack Backpack Vacuum Backpack Have a sidebar for carrying water bottles? es, the backpack can holds 1L water bottle with a diameter of 6cm 【HIGH-QUALITY ZIPPERS】 Surface-layer polyurethane [PU] transfer coating to polyester fiber [polyester synthetic fiber] backing. Install one suitable nozzle to the inflationport,and connect to the products ,thenturn on the pump to start inflating Large Capacity Expandable Cabin Size Built in Vacuum Backpack Deal... Buy MARKETRON 35L Vacuum Compression Travel Backpack with Built-in Air Pump & Side Water Bottle Pocket | Lightweight Laptop Bag for Business, College, Camping | Expandable Airpack Design Saves Space with fast shipping and top-rated customer service. Once you know, you Selection of high quality materials High Quality Zippers and Water Resistant MARKETRON Airback Vacuum Travel Backpack You can extend the zips and buckles to suit your needs. Age Range Description Adult Item Weight 1., 54 Kilograms Number Of Items 1 Units 1 Count Capacity Total 35 Liters 【MORE CAPACITY STORAGE】The MARKETRON Vacuum Backpack is 25L before vacuum storage and up to 40L with vacuum compression. Electronic Scale Backpack BANGE Airback Vacuum Compression Backpack - Expandable 20L To 35L Travel Bag With Pump Airback Backpack With Pump MARKETRON Airpack 35L Travel Backpack Carry Travel Backpack For Men Women, 50L Flight Approved Expandable Suitcase Usb Type C Port Water Resistant Luggage Daypack Business Weekender Bag Black Backpack Vacuum Does this backpack come with a vacuum pump? Yes, the backpack is equipped with a vacuum pump. About the air pump instruction 【COMFORTABLE, STURDY, MULTI-PURPOSE】The Air Vacuum Travel Backpack features a multi-panel airflow design with a 3D back pad, breathable adjustable shoulder straps and a waist belt liner to take the load off your shoulders and back. Is it suitable for traveling on board? Fits Everything, Stows Perfectly in Plane Under Seat 【DURABLE WATERPROOF FABRIC】MARKETRON vacuum seal backpack zippers feature high-quality custom hardware, ensuring smooth operation and durability. 【VACUUM COMPRESSION】The MARKETRON travel backpack features a vacuum compression design that compresses clothing and other packable items to optimize space and allow you to carry more.