"Getting through security is a hassle, and unless you have TSA PreCheck, don't wear lace-up shoes or you'll be that person at security waiting to unlace your shoes. They are also
not very comfortable on the planes due to your feet expanding in the air. Always wear a shoe that isn't tight and lets your feet breathe, otherwise, your feet will be uncomfortable for hours. If you choose to wear flip-flops, make sure you bring a pair of socks to wear on the plane. Your feet will get cold due to them being next to the airplane's walls near the heat escapes. Also, no one likes to see bare feet."
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