No Leak and Airtight Our Vaccuum Sealing Bags are made with double-zipper closure and ultra-secure triple seal turbo valve which provides a secure seal and air-tight suction, they will ensure no air gets back into the vacuum sealing bags to ruin what's being stored. Definitely a Great and an Effective Protection Way to your items and protect it from somethings that would damage or even ruin your clothes or fabric Durable and ReusableThese vacuum bags are made with a high-quality mixture of PA&PE. It is a study, soft and healthy material compared to other vacuum sealer bags, It will retain their seal for a very, very long time, and hold up several uses of packing for storing, traveling or housing moving. And the PA&PE materials have no harm to human body. Also these bags are see-through on one side, you can easily spot whats inside, find what you need without opening several bags