Halloween Costume Buying Guide: Sizing, Materials, Comfort and Safety
How to read costume size charts, what is really included, which materials stay comfortable and the safety checks worth making.
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A costume has one job: to be worn, comfortably, for several hours. Most costume regrets come from the things a product photo does not show, such as sizing that runs small, accessories sold separately and fabric that itches. This guide covers how to choose a costume that fits, lasts the night and keeps the wearer safe.
Before you click buy
- Measure the wearer and use that listing’s own size chart.
- Read exactly what is included.
- Look for a flame-resistant label.
- Check that the wearer can see, breathe, walk and sit.
- Order early enough to exchange.
Sizing: trust the tape measure
Costume sizes are not standardised. A medium from one maker can match a small from another, and children’s costumes are often labelled by age ranges that tell you little.
- Measure chest, waist, hips, inseam and height.
- Compare with the size chart on the specific listing, not a general chart.
- If the wearer is between sizes, the larger size is usually safer. You can pin or belt a loose costume, and it leaves room for warm layers underneath.
- For children, check the length. A hem that drags is a trip hazard.
Read what is in the bag
Product photos often show a complete look: wig, shoes, gloves, weapon and makeup. The listing may include only the jumpsuit. Check the “includes” line and price up the extras before deciding that a costume is a bargain.
Materials and comfort
| Costume type | Comfort | Effort | Good to know |
|---|---|---|---|
| Packaged polyester costume | Light, sometimes thin or scratchy | Low | Wear a base layer underneath for warmth and comfort. |
| Plush or onesie costume | Warm and soft | Low | Excellent outdoors on a cold night. Hot at an indoor party. |
| Inflatable costume | Bulky, with limited movement | Low | Needs batteries for the fan. Awkward on stairs and in cars. |
| Full mask or head | Warm, with restricted vision | Low | Plan to take it off for walking and eating. |
| Home-made from clothing | As comfortable as normal clothes | Medium to high | Often the cheapest and most original option. |
Think about where the costume will be worn. For trick-or-treating, plan for cold: room for a jumper underneath beats a coat on top. For an indoor party, plan for heat, and avoid anything you cannot partly remove.
Safety checks
The following points reflect guidance from U.S. consumer safety agencies, linked at the end of this article.
- Flame resistance. Look for costumes, wigs and accessories labelled flame resistant. The label does not mean a fabric cannot burn, but that it resists burning and should extinguish quickly.
- Loose fabric. Avoid billowing sleeves, long trains and trailing capes near candles and heaters.
- Fit. Costumes and shoes that are too big cause falls.
- Vision. A mask should have eye holes large enough to see clearly. Makeup or a hat is often the better choice for children.
- Visibility. Add reflective tape to dark costumes and carry a light after dusk.
- Props. Swords, wands and staffs should be soft and flexible.
- Decorative contact lenses. The FDA advises against wearing coloured or decorative lenses that were not prescribed and fitted by an eye care professional.
Buy, make or reuse
- Buy when you want a specific licensed character or are short of time.
- Make when you want something original or need a costume that truly fits. Many of the best costumes are ordinary clothes plus one strong prop.
- Reuse or swap for children, who outgrow costumes after one wear. Costume swaps with friends or neighbours save money and storage.
When to buy
Buy early for choice. Popular characters and common sizes go first, and an early order leaves time to exchange. Before ordering, read the retailer’s return policy for seasonal items, because some shorten or restrict returns on costumes around Halloween. For a full seasonal schedule, see our Halloween planning timeline.
Group and family costumes
Pick a theme with flexible roles, so every age and body type has a comfortable option. Choose themes where the group is recognisable even if one person drops out, and agree on who is buying what, so two people do not order the same character.
Finishing touches
Makeup often does more than a mask and is easier to wear. Our guide to Halloween makeup for beginners covers products and skin safety. A few accessories that improve almost any costume:
- Reflective tape for dark outfits: See reflective tape on Amazon (paid link, opens in a new tab)
- Thermal base layers for cold nights: See thermal base layers on Amazon (paid link, opens in a new tab)
- Clip-on LED safety lights: See clip-on safety lights on Amazon (paid link, opens in a new tab)
Care and storage
- Follow the care label. Many costumes are hand-wash or spot-clean only.
- Air-dry completely before storing.
- Hang costumes or fold them loosely in a breathable bag. Avoid sealing damp fabric in plastic.
- Keep accessories in a labelled bag pinned to the costume.
- Store wigs on a stand or stuffed with tissue, so they keep their shape.
Frequently asked questions
Should I size up for a Halloween costume?
If the wearer falls between sizes, usually yes. Extra room allows for layers and is easy to adjust, but check that the length will not cause tripping.
What does flame resistant mean on a costume?
It means the material is designed to resist burning and to stop burning quickly once it is away from the flame. It can still catch fire, so keep costumes away from candles and heaters.
Are costume contact lenses safe?
The FDA says decorative lenses should be worn only with a prescription and a proper fitting from an eye care professional. Lenses sold without a prescription are not approved and can injure the eye.
How early should I buy a costume?
Late September to early October gives the best mix of choice and time to exchange.
