What you wear to the airport sounds trivial. It is not. The wrong shoes, the wrong belt buckle, or a single piece of metal jewelry can be the difference between walking through the body scanner and being pulled aside for a pat-down. At a busy checkpoint, that’s an extra five to ten minutes — long enough to miss a tight connection.

This guide is what to wear (and what not to wear) when you fly, based on how TSA’s screening technology actually works. None of this is about fashion. It’s about not being the person holding up the line.

How TSA Screening Actually Detects Things

There are two screening paths at every US checkpoint:

  • Advanced Imaging Technology (AIT) body scanners — the millimeter-wave machines you stand inside with your arms raised. These detect anomalies on the surface of your body and clothing, including metal, plastic, organic material, and even folds of thick fabric.
  • Walk-through metal detectors — the simpler frames used in TSA PreCheck lanes and at some smaller airports. These only detect metal.

What you wear matters differently in each lane. In a body scanner, anything bulky or layered triggers a manual pat-down of that area — even non-metal items. In a metal detector, only metal triggers an alarm.

Most travelers will go through the body scanner, so most of this guide is optimized for that case. If you have TSA PreCheck, you’ll usually get the metal detector, which is more forgiving.

Shoes: You Keep Them On Now

Since July 2025, TSA no longer requires travelers to remove their shoes in standard screening lanes at US airports. This applies to everyone, not just PreCheck members. The old advice to wear slip-ons so you could get them off quickly is obsolete.

What matters now is not how fast a shoe comes off, it is whether the shoe alarms in the first place.

Best shoes for the checkpoint

  • Plain sneakers, flats, and canvas shoes with minimal hardware
  • Simple leather shoes and loafers
  • Sandals, though socks are still worth packing

Shoes that can still cost you time

  • Steel-toe work boots and anything with a metal safety cap
  • Cowboy and riding boots with metal shanks in the sole
  • Vintage or heavy dress shoes with metal heel rods
  • Chunky metal buckles and heavy eyelets
  • Very thick platform or wedge soles, which are hard for imaging to see through

If any of these alarm, the officer will ask you to remove them and send them through the X-ray, which is now the slow path rather than the default one. Our full guide to whether you have to take your shoes off at TSA covers every exception.

The sock question

Still wear socks. Most travelers will keep their shoes on the entire time, but alarms and additional screening still happen, and you do not want to be the one person standing barefoot on a checkpoint floor.

Belts: Skip If You Can

Any belt with a metal buckle will set off the metal detector or trigger a body scanner alarm. Your options:

  • No belt — wear pants that fit without one. Easiest by far.
  • Plastic or rubber buckle belt — golf belts, “TSA-friendly” travel belts, and stretch belts with no metal
  • Take it off in the bin — annoying but works. Loop it through the handle of your carry-on so you don’t lose it

In PreCheck lanes, you can leave belts on as long as the buckle is small and you don’t trigger the metal detector. With a chunky buckle, take it off either way.

Jackets, Coats, and Layers

All outerwear has to come off in standard lanes. This includes:

  • Coats and jackets (even light ones in some interpretations)
  • Hoodies and zip-up sweatshirts
  • Cardigans and shawls
  • Scarves and pashminas

A pullover sweater or fleece can usually stay on, but a body scanner may flag bunched-up fabric and require a pat-down of that area.

What this means in practice

  • Take your jacket off before you reach the bins — don’t be the person fumbling at the front of the line
  • Empty your jacket pockets first — wallet, phone, boarding pass, anything metal. Loose items in jacket pockets are the number one cause of “extra screening” at PreCheck lanes
  • Roll a heavy coat and put it in your carry-on if it fits — fewer bins, faster screening
  • Cold-weather travelers: dress in lighter layers you can remove quickly rather than one bulky parka

In PreCheck, light jackets and hoodies can usually stay on. Heavy coats still come off.

Jewelry, Watches, and Accessories

Stays on

  • Wedding rings and small rings (gold and silver rarely trigger alarms)
  • Small stud earrings
  • Thin necklaces with small pendants
  • Most fitness trackers and smartwatches

Comes off (or triggers a pat-down)

  • Large statement necklaces
  • Chunky bracelets
  • Multiple rings or large rings with stones
  • Heavy belt buckles
  • Body piercings — especially in areas the scanner flags. You generally don’t have to remove them, but you may be pulled for a pat-down or asked to verify with the scanner
  • Hair clips and large barrettes
  • Metal-framed glasses (rare but can flag in some scanners)

Watches

A standard wristwatch usually stays on for PreCheck. For body scanners in standard lanes, most agents will tell you to take it off — large metal watches almost always flag.

Tip: Wear small, low-profile jewelry to the airport and put your nicer pieces in your carry-on. You’ll move faster and won’t lose anything in a bin.

Bras, Underwire, and What to Know

Body scanners flag underwire bras on a meaningful percentage of passengers — not consistently, not always, but often enough that travelers ask about it constantly.

  • You don’t have to remove your bra. Ever. If the scanner flags the chest area, you’ll get a hand-wand or a same-gender pat-down of that area.
  • Wireless and sports bras are less likely to trigger flags
  • Padded bras are fine; padding does not trigger the scanner
  • You have the right to request a private screening room for any pat-down

If you fly frequently and the chest pat-down is uncomfortable, consider switching to wireless bras for travel days. It’s the single change that most often reduces secondary screening.

Hair and Headwear

  • Long hair: tie it back or off your neck. Loose hair, especially thick or curly hair, sometimes flags on body scanners
  • Hair ties and clips: small ones are fine; large metal barrettes can flag
  • Religious head coverings: you do not have to remove them at the checkpoint. If the scanner flags the area, TSA will offer a private pat-down option
  • Baseball caps: take them off before the scanner — they generally flag
  • Hats with metal pins, buttons, or hardware: remove and put in a bin

Pockets: Empty Them Before You Reach the Bin

This is the single most common mistake travelers make. Everything in your pockets must come out — even items that are “TSA friendly”:

  • Phone
  • Wallet
  • Keys (and key fobs)
  • Loose change
  • Tissues, gum, lip balm
  • Boarding pass and ID (you don’t need these in the body scanner)
  • Receipts and paper

Even paper triggers anomalies on a body scanner. The fix is simple: put everything in your carry-on or a bin before you reach the scanner, and pick it up on the other side.

Pro tip: Use a small pouch in your carry-on as your “pocket dump” pouch. Phone, wallet, keys all go in it as soon as you reach the line. Less to fumble with at the bin, less to forget on the other side.

Clothing Materials and Patterns

A few specific fabric and clothing choices that affect screening:

  • Sequins, rhinestones, and metallic threads — can trigger body scanner alarms. Avoid for travel days.
  • Thick fleece, sherpa, and quilted jackets — frequently flag for “anomaly” because of the bulky fabric
  • Cargo pants with many pockets — fine to wear, but empty every single pocket
  • Skirts and dresses with metal zippers, snaps, or beading — can flag the body scanner
  • Compression garments and shapewear — generally fine but bulky compression can flag

What to Wear: The 60-Second Summary

Best travel outfit for standard lanes:

  • Slip-on shoes with socks
  • Pants that fit without a belt (or stretch belt with plastic buckle)
  • Plain t-shirt or thin sweater
  • Light jacket you can remove quickly
  • Minimal jewelry, no statement pieces
  • Wireless bra if applicable
  • Everything else in your carry-on, pockets empty

Best travel outfit for PreCheck lanes:

  • Whatever is comfortable
  • Small belt buckle or no belt
  • Minimal large metal jewelry
  • Pockets emptied (still required)

When the Scanner Alarms Anyway

Even with perfect clothing, body scanners alarm on about 1 in 4 passengers — often for reasons that have nothing to do with what you’re wearing (sweat, body shape, scanner sensitivity that day). If it happens:

  • You’ll be asked to step aside for a hand-wand or pat-down of the flagged area
  • The pat-down will be done by a same-gender TSA officer
  • You can request a private screening room
  • The whole thing usually takes 2–3 minutes

It’s not a big deal. Don’t argue, don’t get flustered. Travelers who stay calm clear secondary screening in under three minutes. For the full walkthrough of what to expect, see our guide on TSA body scanners and pat-downs — including your right to opt out, request a private screening, and have a witness present.

Other Things That Save Time

Clothing is one variable. The bigger ones:

Frequently Asked Questions

Do I have to take my shoes off at airport security?

No. TSA dropped the shoe removal requirement in July 2025, and it applies in standard lanes as well as PreCheck lanes. You may still be asked to remove footwear if it alarms, if it contains significant metal, or if you are selected for additional screening. See the full shoes-on rule.

Will my underwire bra always set off the body scanner?

No — but it sometimes does. If you fly often, wireless bras are a reasonable travel-day swap.

Can I wear sandals through TSA?

Yes. Sandals have almost no metal, so they rarely alarm. Bring socks anyway in case you are asked to remove them.

Do I have to remove my wedding ring?

No, almost never. Small rings don’t typically trigger metal detectors or body scanners.

Can I wear a hoodie through security?

You can wear it in, but expect to take it off at the checkpoint. Hoodies count as outerwear and almost always have to come off.

Will my piercings set off the metal detector?

Sometimes. Small piercings often pass; larger or numerous piercings can trigger an alarm. You don’t have to remove them, but you may need a hand-wand or pat-down.

What about religious head coverings, like hijabs or turbans?

You don’t have to remove them. If the scanner flags the area, TSA will offer a private pat-down with a same-gender officer.

Check Wait Times Before You Leave

The best outfit in the world doesn’t help if you’re in a 45-minute standard line. Before you head to the airport, check when your airport’s checkpoints are busiest and plan around the rush.