4 Set Storage Bag: S: 27 x 21.5 cm, bottom width 8.2 cm, weight 45 g, M: 34.5 x 33.5 cm, bottom width 11 cm, weight 95 g, L: 44.5 x 33.5 cm, bottom width 11 cm, weight 113 g, Shoe bag: 40.5 x 31.5 x 10 cm, weight 50.2 g. 4 Set storage bag set compresses luggage space, making it easy to organize and store small items and clothing. Not recommended for large items in the vacuum bags，Please check the size before purchase（This product link NO pumps） IPX8 Airtight Zipper: Our vacuum compression bags features a high quality IPX8 airtight zipper, prevents gas and liquid penetration, keeping clothes dry and clean. Please pull the zipper all the way to achieve a premium seal, The shoe bag uses a standard zipper,However, please note that the shoe bag is not waterproof Material: Compared to regular compression bags, these upgraded vacuum compression bags boast superior vacuum compression capabilities. Utilizing advanced 40DTPU nylon environmentally friendly waterproof fabric, they offer exceptional durability and abrasion resistance One-way exhaust valve: Featuring a minimalist, high-quality one-way valve design, the storage bag can be deflated by manually squeezing it or using an air pump/vacuum cleaner (not included), after which the valve can be securely closed to ensure long-term protection for your clothes during your trip. It can be carried by hand, making it very convenient Our Service: It has always been our goal to provide you with quality products and fulfil all your needs. If you have any questions, please feel free to contact our team for solutions Grey,No pump