Hello, first of all, thank you for choosing us. We do come across this situation though, though rarely. Our distributor informs about this as follows. This situation is 95% caused by the hose not being fully inserted into the cap after washing the product before use. First, this needs to be checked out. If you are sure that the hose section is inserted exactly, check the following cases: - Is there a blockage in the straw part of the product? Are the silicone seals at the joint of the lid and the straw damaged or have they leaked air? - Is the seal out of place, is there any foreign matter in between? If the same situation occurs after checking these, I kindly ask you to share detailed photos and videos of the product, especially the inside of the lid and the connection points. We will ask for support by directing it to the service for you.
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Picnic 580ml Steel Flask Blue with Smiling Face Figure3154148713036
