【Expandable Capacity】 This FANJUN-AMTECH backpack vacuum compression system expands the pack to 60 liters, equivalent to a 24-inch suitcase. Its compact size (12.6 x 7.87 x 19.29 inches) makes it ideal for commuting and business travel 【Well-Made and Durable】 This FANJUN-AMTECH luggage is made of high-density waterproof oxford cloth with durable SBS zippers. The ergonomically designed back panel has thick and breathable padding for comfortable wearing 【Maximize Packing Efficiency】 The FANJUN-AMTECH backpack features one-way valves for fast compression using an electric pump or manual valve, minimizing wasted space and maximizing luggage capacity 【Anti-Theft Design:】The TSA Customs combination lock is designed to better protect the contents of the bag and provide peace of mind when travelling, while a hidden zipped pocket on the back keeps valuables safe 【Wet & Dry Separation】This FANJUN-AMTECH travel backpack has multiple compartments and dedicated wet and dry pockets, you can separate wet towels or clothes from electronics and other dry items to ensure everything is organized, clean and tidy vac space backpack，compression backpack for travel，vacuum backpack travel，mindesa backpack，vac pack backpack，travel vacuum bags for luggage-FANJUN-AMTECH Expandable Capacity: This FANJUN-AMTECH backpack vacuum compression system expands the pack to 60 liters, equivalent to a 24-inch suitcase. Its compact size (12.6 x 7.87 x 19.29 inches) makes it ideal for commuting and business travel Well-Made and Durable: This FANJUN-AMTECH luggage is made of high-density waterproof oxford cloth with durable SBS zippers. The ergonomically designed back panel has thick and breathable padding for comfortable wearing