[High-Efficiency Vacuum System] 1. Crafted from a thickened polyester-TPU composite, the travel vacuum bags and their airtight zipper can withstand over 1,000 reuses. The smooth zipper glides effortlessly, preventing snags and breaks, which makes it ideal for frequent use in vacuum seal bags for clothing and compression bags for travel.,[One-Way Valve & Waterproof Design] 3.
