Tested in laboratories, the pouch is IPX7 checked which means that it can guarantee waterproofness when immersed in water for 30 minutes at a 1 metre depth. In order to do this, the window of the pouch must be closed correctly.
Fasten the plastic seal and check that the bag is airtight. Then fold the top flap 3 times and finish by folding the 2 hook and loop tabs.