10 Most Frustrating Air Travel Rules & Regulations

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Shoe Inserts vs Push-Up Bras

Gel shoe inserts are not allowed through security—but you can wear a gel-filled bra through the scanner. According to Daniel Feldman of Profoot, most shoe inserts include 200 grams total of resin or polyurethane gel. By comparison, some bras plump up with similar amounts of silicone. So while you might make like Charlize Theron and strap nearly half a pound of silicone to your chest, you’ll need foam, not gel, for your feet.