High quality materials: Our vacuum bag is made of 70D nylon and TPU composite material, which has a , is and wear-, and can be used to organize various clothes. The vacuum storage system can compress luggage space by three times! Compared to other on the market, it can save up to a large space! IP67 Airtight Zipper:This vacuum compression bags features a high quality IP67 airtight zipper, which can be reused . Similar to those found on diving suits, prevents gas and liquid penetration, keeping clothes dry and clean.Tip:Due to its airtight zipper, the zipper may be tightened , so please be patient when using it Noticed:Folding the product in the product packaging process may lead to a slight crease in the zipper, the zipper appear to leakage, if the situation, can be repeated to open and close the zipper 10 times to solve the problem of air leakage. The individual weight is only 220g/0.04lbs, which is particularly and can hold the required clothes, making it perfect for carrying in a suitcase,Our vacuum bag more suitable for people who frequently travel. They can help you keep your business attire neat and orderly. Travelers can maximize the use of luggage space during long-distance travel Usage: This bag adopts an extremely simple and high-quality one-way valve design, which can easily discharge air by manual squeezing or rolling. Prevent air backflow, so you 't be too busy. Our travel vacuum bags that your clothes receive long-term sealed protection during travel or cruising.