Thanks to the patented Gooper® technology of HERMETIC products, our dry bags provide an item that can become a true essential. Whether you're a beachgoer, cyclist, backpacker, or outdoor enthusiast – the bag's automatic hermetic sealing system allows you to securely store all the items that matter to you. HERMETIC dry bags won't open accidentally, and the contents remain 100% dry. Thanks to the transparent material, you can still access your smartphone.