The Backrooms Costume
Escape the endless yellow halls in iconic ASYNC researcher gear.
The Backrooms is a viral internet creepypasta and urban legend about an endless maze of empty, fluorescent-lit office rooms. Fans love dressing up as ASYNC researchers exploring the depths, or the eerie entities lurking within. This guide helps you assemble the iconic yellow hazmat suit look worn by the ill-fated explorers.
- Difficulty
- Easy
- Time
- ~20 min
- Budget
- $35–80
Try it on
See yourself as The Backrooms
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What you need for a The Backrooms costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete The Backrooms costume — one box instead of 5 pieces.
Yellow Hazmat Suit
A disposable yellow protective coverall suit with an attached hood and elastic wrists and ankles.
DIY: Use a bright yellow hooded raincoat and matching yellow rain pants.
Full-Face Respirator Mask
A black full-face respirator mask or a replica gas mask with dark circular eye lenses.
DIY: Wear dark ski goggles paired with a black paint respirator mask.
Black Rubber Gloves
Heavy-duty black chemical-resistant gloves or thick black dishwashing gloves.
DIY: Any thick black winter gloves or dark work gloves.
Black Work Boots
Sturdy black combat boots or rubber rain boots.
DIY: Any dark-colored sneakers or boots you already own.
Prop Camcorder
A vintage-style black plastic camcorder to capture 'found footage'.
DIY: Carry an old deactivated video camera or build one out of cardboard painted black.
Rather not assemble it? See ready-made The Backrooms costumes at Spirit Halloween ↗
How to put it together
- 1
Put on comfortable, lightweight base clothes like a t-shirt and athletic shorts to avoid overheating.
- 2
Step into the yellow hazmat coveralls and pull them up to your shoulders, leaving the front zipper open.
- 3
Put on your black work boots and pull the elastic pant cuffs of the suit down over the boot tops.
- 4
Securely fit the full-face respirator mask over your head and adjust the straps for comfort.
- 5
Pull the hazmat suit's hood up over your head, ensuring it fits snugly around the edges of the mask.
- 6
Zip the coveralls up completely to the chin, put on the black rubber gloves, and pick up your prop camcorder.
Makeup & hair
Since your head and face are entirely covered by the hazmat hood and respirator mask, no makeup or hair styling is required. Tie long hair back securely so it does not interfere with the mask's seal.
The Backrooms for couples, groups, kids & more
- couples
- One person wears the yellow ASYNC hazmat suit, while the other dresses as a wire-thin Bacteria monster using a black morphsuit and wire frame.
- group
- A team of ASYNC researchers carrying clipboards, flashlights, and hazard sensors to map out the levels.
- kids
- A lightweight yellow rain suit paired with a toy gas mask for an easy, kid-friendly version.
- Plus size
- Look for industrial safety supply brands online, which offer disposable yellow coveralls up to size 5XL.
- pet
- A simple yellow dog raincoat labeled 'ASYNC K9 Unit'.
Tips
- Hazmat suits trap body heat quickly; wear moisture-wicking undergarments to stay cool.
- If using a real respirator mask, remove the actual filters or use hollowed-out replica filters to ensure you can breathe easily all night.
- Carry a vintage camcorder or a phone rigged inside an old camera shell to capture authentic 'found footage' style photos.
The Backrooms costume FAQ
- What do people wear in The Backrooms?
- In popular lore (especially the Kane Pixels series), researchers from the ASYNC Foundation wear bright yellow hazmat suits with full-face respirators to protect against anomalies.
- How do I make a cheap Backrooms costume?
- Buy a cheap disposable yellow paint suit online, pair it with black cleaning gloves, and use a cheap plastic toy gas mask or dark goggles.
- Is the hazmat suit hot to wear?
- Yes, Tyvek and plastic suits do not breathe well. Wear light shorts and a t-shirt underneath, and take regular breaks to unzip and cool down.
Did you know? The Backrooms originated from a 2019 post on 4chan's /x/ board, but was popularized globally by teenager Kane Pixels' viral CGI short films on YouTube.