100% waterproof,zipper-waterproof,airtight,pressure-resistant,keep your items inside perfect and dry. Compared with other ordinary zippers, the zippers will be tighter at first because they are specially made waterproof zippers. But please rest assured to pull and tighten forcefully.
Please refer to the method guide for opening the zipper on the details page for the first time. Please pull it hard. It will be very tight for the first time, and it will be easy to pull it several times.After it is completely sealed, you can press down on the bag with both hands. If there is no air leakage at this time, it means that it is completely sealed. If there is air leakage, please check whether the zipper is not completely sealed and try to seal it again.
An ideal product for your outdoor sports: river rafting, boating, sailing, swimming, and fishing, hiking, cycling, etc.
Protect your items from dust, water, snow, rain, just enjoy the outdoor life freely.Easy to wash and durable to use.The longest belt can reach
Please note that because it is a special underwater zipper, the zipper will need more force to open and close than the ordinary zipper. This is normal. Only such design and manufacture can ensure no water leakage under the water. If this happens when you use it, it is normal.