We’ve traveled the world with our bkr bottles. Just be sure to take them through security empty and fill up on the other side. Keep in mind that some venues, stadiums, amusement parks and courtrooms don’t allow glass inside. Make sure to check with the venue beforehand if you’re worried. And if your bkr is ever confiscated, remember to take off your cap, balm and sleeve and keep them – you replace the glass later.