I posted on her asking about the 311 for carry one since we leave for Vegas soon and are doing only carry on for the first time. But I looked up on TSA for something else and on there it said 3.4 oz the reason I’m questioning this so much is my DH after shave is 3.4 we’ve been looking to find him something smaller but can’t find anything just seeing if There’s any issues with 3.4. Thanks all